I long had a suspicion that this girl was fucking another guy, and curiosity finally got the best of me.

We are not in an exclusive relationship, but I had asked a few times if she was seeing anyone else, and would make jokes about it (she asks if she left her sweater at my house I tell her to check the other guys house) and she consistently denied it, tells me she would never lie to me, gets upset that I don't believe her, etc.

The other guy basically just pumped and dumped her I guess, and it makes me feel like I'm just her rebound.

Obviously I have no right to be mad or jealous about the sex since we are not exclusive, but I am really disturbed that she lied to me. We've been getting a little serious lately and the first few days after I found out I just had the worst feeling in the world, I couldn't eat and didn't even go to work.

I'm not really sure what to do, and just wanted opinions. Next her for lying to me? Or just play it cool with her and fuck other women?

Square peg square hole.

Nothing wrong w feeling a bit jealous but be honest w yourself

If you want a LTR with this girl, it's predicated upon a lack of safety and security - ask yourself if it's a good idea (my guess is no).

If you want a FWB relationship, then frame it as just that but the fact you searched her phone already tells me you're in it for more of an investment then to simply get your dick wet from time to time.

Women lie all the time usually with the intent of not hurting your feelings. Women need a good fuck but if they just went ahead and fucked everyone for the whole world to see, or know, that would be bad for them and for the guys who like/love them.

Always assume girls are fucking someone else but fuck them the best that you can and treat them well. What goes around comes around. When you fuck girls well, they'll be the ones who want to go exclusive, treat you like a king, and stay loyal with ONLY you even when you're fucking a woman's bestfriend, sister, aunt or mom on the side.

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Approach. Open. Escalate. Isolate

Here are my two essential rules on texting that will save you tons of time and money:

general-questions/topic137931.html

I agree with this guy. Always assume she is fucking someone else even if she is not. That way you will avoid being hurt if she is, and she will try really hard to prove to you that she is not ( and won't be ) if she only wants to fuck you.

IMO don't date girls that let you fuck them really easily. They generally have higher testosterone and are similar to men when it comes to sex. They crave the dopamine rush of sex as the first priority and everybody elses feelings and what not come second to their desire for their drug.

Thanks guys, when I created the thread I was really angry and just needed some encouragement to next her.
I've cooled off a bit but it's still biting at me quite a bit, I don't think I could continue as just FWB.
I need to confront her and I imagine it will be the end for us, hopefully at least on a good note.

You've invested in her. FWB won't work anymore. Find another, preferably a girl with higher self-esteem.