How to Tell If Your Girlfriend Has Slept with Someone Else

Are your girlfriend’s activities giving you sleepless nights? Is she getting a bit too friendly with a particular person? Are you worried there might be something more than just a casual friendship there?

If the answer to those questions is ‘Yes,’ it might be time for you to find out what’s happening behind your back. And the best way to do it is by spying on her phone!

A handy phone monitoring app can achieve what your indirect questions to her can’t. It can let you in on all her interactions and social media activity 24×7.

If you’ve been scouting the Internet for answers to “how to tell if your girlfriend has slept with someone else”, the solution is right here.

In this guide, we’re revealing a reliable and efficient phone monitoring app that will help you find out everything your girlfriend has been up to through her Smartphone.

Thereafter, we will be letting you in on the 10 signs that reveal your girlfriend just slept with someone else, followed by what you should do if you find out if she’s cheated on you, so make sure you read this till the very end.

Let’s get started.

Part 1: How to tell if your girlfriend has slept with someone else

The most discreet way to find out if your girlfriend is sleeping with someone else is by spying on her phone. A lightweight and stealthy app called Spyier can help you achieve this while keeping your identity hidden.

Spyier lets you snoop around your girlfriend’s phone and take a look at her call history, text messages, contacts, calendar, GPS location, as well as social messenger activity. The best aspect of the app is that it takes utmost care you don’t get caught while spying!

The app works for both Android and iOS devices and doesn’t need you to root or jailbreak the device.

The Android version of Spyier needs to be installed on the target phone which takes less than 5-minutes, and once done, you can hide its icon so she has no clue you’re spying on her. The app is extremely lightweight, less than 3M in size, and doesn’t consume much battery and resources of the target phone so spotting it is impossible!

Working with Spyier’s iOS version is even easier. It doesn’t need to be installed anywhere and works completely remotely. All you need are her iCloud credentials and the app will do the rest.

Why Spyier is the best phone spy app out there?

If you’re still skeptical about using Spyier, rest assured that you shouldn’t have second thoughts about it. There are several benefits to using this reputed phone monitoring solution.

For one, you don’t need to install anything on your own phone to work with it. For Android phone monitoring, a virus-free installation on the target phone does the trick and for iOS no install is needed at all.

Secondly, and most importantly, the app works in complete stealth mode needing no intervention from your end once set up.

You can view all data of the target phone through a web-based dashboard to which you can log in using any web browser (desktop or mobile).


What’s more, none of the data (your personal photos or messages) stored on your girlfriend’s phone will be saved on Spyier’s servers. The app isn’t in the business of stealing information or selling it to third-parties.

Millions of people across the globe have used this app for monitoring their partner / employee / or child’s phone without getting caught. Even business giants like TopTenReviews, The Huffington Post, and BBC trust Spyier’s abilities.

The cherry on the cake is that it is very economical as compared to other similar apps out there and a single license purchase gives you access to over 35 neat features.

How to spy on your girlfriend’s phone using Spyier

Here’s how you can easily conduct discreet phone monitoring using Spyier:

Step 1: Check out the pricing page and pick a suitable plan. If your girlfriend owns a single device, you can monitor it with Premium. In case she owns multiple, you can choose Family. 

When you click on “Buy Now”, a pop up box will appear. This is where you input your email, it will be associated with your account. Follow the rest of the purchase instructions here.

Step 2: Upon making the payment, you will be taken to the payment confirmation page. It will contain a plan summary as well as your login credentials. You will be assigned a unique, random, and safe password by the server. 

Moreover, you will receive an email with your login credentials and some other important instructions, including links to the Android setup guide and iOS setup guide. Note that you can change your password at any time. 

Click on “Start Monitoring” when you are ready to proceed with the installation.

Step 3: From here, the steps will vary as per the OS selected:

a. For Android:

The Setup Wizard will guide you through the installation and configuration of the app on the target device. To learn about all the steps in detail, visit this page >>

b. For iOS:

Verify the iCloud credentials of the target phone. Spyier will then sync the iCloud data of the target phone into your dashboard


Step 4: Once set up is completed, click on ‘Start’ and you’ll be redirected to your dashboard.


Now that the monitoring on the target phone has started, you can login to your Spyier dashboard and view all data on your girlfriend’s phone without giving her any clue that you’re on to her! For an idea of how your app dashboard will look, check out this free live demo.

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Part 2: 10 signs your girlfriend just slept with someone else

She’ll try to hide it as best as she can, but if you keep your eyes open for these 10 signs, you’ll know her secret:

  1. Notice if she gets uncomfortable every time you’re near her phone. Her being overprotective of the device is a sure sign there are dirty secrets lurking in there.
  2. If she’s been avoiding eye contact with you of late, her guilt behind cheating on you could be making her do so.
  3. Keep an eye out for what she does as soon as she gets home. If the first thing she does after getting home is showering / changing / heading straight to bed, there might be something fishy going on.
  4. Does it seem like of late your girlfriend is always busy with her “personal errands?” Time to find out what she does during this time!
  5. If she’s suddenly rejecting your advances for intimacy, you might want to start wearing your spy cap on.
  6. Has she become needy for space? If she has started becoming uncomfortable with your closeness with her, it might be due to her guilt of having cheated on you.
  7. If she’s constantly checking in on you, trying to find out where you are and when you’ll be back home too often, there could be something she doesn’t want you to find out if you drop in early.
  8. Do you notice a sudden change in her temperament? If she’s unnecessarily becoming rude or irritable at small things, she might deliberately be looking for reasons to fight. Could be because of a mood swing, or maybe she’s hiding something!
  9. Even after a long hard day at work, if she looks spic-and-span on entering the house, maybe she just re-did her makeup. Could that be because she was up to something naughty just before?
  10. While having a casual conversation about other couples and love, if she attempts to change the topic ever so suddenly and becomes irritated if you try to return to the topic, you should know something isn’t right.

If you spot any of these tell-tale symptoms, you should know it’s time to confront your girlfriend about her loyalties.

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Part 3: What to do if you find your girlfriend has slept with someone

Finding out that you’ve been cheated on isn’t pleasant. There’s the shock, the pain of betrayal, and then there’s anger. But if you’ve got yourself on the wrong side of such an occurrence, we’d advise you not to act out in a temper.

Sometimes, things aren’t entirely black and white. She might have been disturbed with you for some reason and maybe there was someone else to soothe her. Or it could have been a one-time thing that didn’t mean anything.

The best course of action would be to try and find out why she did it. Why she broke your trust and jeopardized the future you both had envisioned. Talk to her keeping your mind open, and if you feel it’s time to move one, end things cordially and try to overcome what comes next.

Wrapping things up

If you’ve been noticing any signs that your girlfriend is cheating on you, it may be time to find out for yourself. Spying on someone isn’t legal, but looking out for yourself is justified. Make use of Spyier and find out if your suspicions are true.