So normally when me and my girlfriend are together our phones are rarely out. The past couple days mainly tonight she took her phone everywhere. I noticed she was texting this guy in her biology lab. The strange thing is that she was constantly checking her phone. She was checking it like literally ever couple of mins. I finally got annoyed and asked her why she was checking her phone so much?

Her response was that she was waiting for her co-worker from work to text her about something regarding work (this was at about 12:00 am). I went to look at her phone when she went to sleep and saw texts back and forth from this guy but none from the coworker(the last text was sent by the coworker not her at around 8pm).

Not sure if im overreacting but guys text her all the time but this one was a red flag for me.

Side note she has openly told me that he told her "jokingly" that he wished that she was his girlfriend

Opinions?

Stop while your are ahead. Your insecurity will be the death of you. You cant control your gf actions, whatever happens, happens. I am not saying she is going to cheat on you, but snooping around, asking her shit, and all these other things will drive her away faster than you can blink. Jealousy will eat you alive.

I couldn't agree more with DeanAssertive.
I would just add a few things. One, do you trust her? If you've been dating for a while already and you seem to find that you're having trust issues then this could be deeper. Is it possible this even stems further than your relationship with your gf? Time for you to do some contemplation.

Secondly, if you love her then you should get off this forum and enjoy her company, but seeing that you're on here suggests to me that your relationship may not be the best as is. I could be wrong, but most guys here just wanna get laid, fuck around with a few people, or get a gf (which are all fine things to be pursuing). So being that you already have a gf maybe spend some more time with her and ONLY give her reasons to want to be with you and not the opposite.

All the best my friend

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Manipulation is such a strong word... I prefer persuasion.

I would caveman fuck her and set her straight. I bet her little biology lab partner doesn't get to do that. See how much she checks her phone when you have her face burried in the pillow. If she gets up and checks her texts as soon as you're done, then you might have a problem still.

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“Nothing is impossible, the word itself says 'I'm possible'!” ~Audrey Hepburn

It possible that she has feeling for this other guy. If It was me I would calmly ask her if anything is wrong, tell her you sens that she has been acting different as of late and that what ever it is she can tell you. If doesn't say anything then push away my friend, give her space, do your own thing, have a life out side of her.

Here is the thing. You can't control her, if she is going to cheat she will do it so there is no point in manipulating her to do other wise because she will eventually cheat any way.

You need to take care of you! You need to get hobbies, you need to go out with friends, you can surround your self with women, heck she clearly doing it, it doesn't mean you have to cross any lines but innocently talking to girls is no problem.

The bottom line is don't let it bother you! keep up your vigilance in case there is anything eles odd going on, but don't try to control the situation. Remember that all you can control is you! so take control of your life and stop worrying so much about hers...if she cheats you will find out eventually and you can tell her to hit the road! but if you obsess over this and it really is nothing you will push her away,