Struggling with break up
I'm so sorry to hear you are hurting amym. I am likewise feeling very sad tonight ... I can't stop pining for my ex-girlfriend. Knowing the relationship could be so good ... but at the same time knowing it wont work - part of me wishes we didn't know it, we could just be together ...
But seeing her like you have been seeing your ex ... that would really mess with me amym ... please be careful. Take care of yourself, spend time with your friends - and don't stop believing that, in time, we can both find someone new.
Try not to look into things too deeply, you might have already been back with him, rather than being stuck in the viscous cycle of "what if's" - this is such a toxic life for so many people. Take the plunge, take a risk, if you really have strong feelings for them (unless you are already in a relationship), then do what you need to do. What are you more scared of than anything, what's holding you back, why are you feeling for them but cannot get past their flaws.
People, this is your life. Do what makes you feel happy and live.
All the best.