Trust is what is needed to be exclusive. If you can't trust her, let her know that and tell her you can't be exclusive. It goes both ways. Unfortunately, it seems like she has weak standards and low self esteem.Mixed responses. Some of you guys saying to let it slide and it wasn’t a big deal and half of you are saying kick her ass to the curb. Leaving her could be seen as alpha or beta depending on how you look at it. Right now I just know that I’m angry as hell and don’t know what to believe with her
Also one shouldn't control the other like a slave in a healthy relationship. If you feel this way or someone is trying to control the other, it's not healthy.
The fact that you were messing around with other girls, I think your projecting those types of behaviors onto others just because you did it and hence the reason why you acted the way you did.
As someone else said, I don't think you're ready for a relationship and you should just keep it light and fun for now. If you lose her because of not wanting one, then so be it. There's many others out there. My $.02