I am at a point in this relationship that I should be able to just let go of her. I'm 99% possitive that she has cheated on me and yet I still grasp on to a little hope that it might all work out. I am so confused as to why I don't just say goodbye as it is so unhealthy. The thought of her with another guy makes me so sick!! Its been a year and a half and just keeps going bad... any advice

Dude,move on,trust is the most important thing in any relationship,you don't trust her now and never will,so move on and enjoy life.It hurts but so does a cut,but it heals.Good luck and smile when you walk away to your new beginning.

This just seems like it will go round and round in circles. It's similar to the "options" speech I wrote on prowaker's question. You need to work out what your options are if you stay in contact with her (more pain because you keep seeing and hearing about her being with other guys, making you feel even sicker... or she comes back to you also out of boredom but leaves again after cheating again and the pain cycle continues).. or option 3 with no contact whatsoever, terrible heart-breaking pain, but over time it getting easier and easier until one day you can think about it without feeling that strong hurt. And you could move on and meet somebody else.

My relationship was going round and round in circles because I clung on to the tiny hope that he would change/things would eventually get better. Then I realised that he would NEVER change, and things would never get better, only worse, and harder in the long run. That realisation made me finally able to to leave him.

They say that if someone suspects of highly cheating then that person was the one cheating and has become self-conscience about her partner thinking they might do the same. If that's not the case, then please learn to trust her or how do you expect her to trust you if you can't even trust her?

This doesn't sound like a happy healthy relationship, at all, and lack of honest communications is making things worse.

Talk to her, and get facts, and not just have feelings.