Ok so me and my ex were dating for two years. Just entering different colleges. We have broken up twice before. The first time she wanted to go into college single and a week later thought we should get back together. The second time which happened about a year and a half after the first break up was for the reason that she wanted to experience college single. She wanted to mature and grow on her own. This time we made a few adjustments that allowed her to feel less constricted by the relationship. But the this time almost a year later she really wanted that time to mature on her own. She also put forth the possibility of trying dating again in the distant future. But three weeks after this break up we were at a mutual friends party. And as we were in the same room she started making out with an aqaintance. I got really upset and emotional and said a lot of bad things that I feel really hurt our friendship.
Is there any chance that I can work this out? I just want some advice considering I am still blindly in love with her.

If your girlfriend wants to "take a break," then that's her right. But to tell you she wants to date other people is, well -- the technical term is "a crock."

Then to make out with another fellow in front of you, well that's just plain inexcusable and totally disrespectful... like surely she could have waited until you weren't around to make out.

You need to let this girl go find herself without being in the picture at all. You need to go total no contact, heal, then find yourself someone who respect you.

She is an ex. She is not with you. Therefore she can make out with whoever she wants and you can't stop her. You need to be happy for her and move on yourself. You care too much for a "friend". Its time to move on buddy and stop spending so much time with her because apparently its obvious you can't just be "friends" with her because you want more. Good Luck.

She obviously feels that she has other fish to fry right now. Cut her loose and move on.

Dude the same issue keeps popping up, and now its gotten worse. She WANTS you to dump her, and stop being so blindly in love with her, because she ain't in love with you at all.

Stop being blind and see reality, as she probably has been going behind your back any way, and now she does it to your face. No way does it get better, its gotten worse so far, and it will get much worse in the future, so let go now, and keep whats left of your dignity and self respect. If you have any.