Can/Should I get my ex back?

I think regardless if she re-finds attraction for you in the future or not, you have a responsibility and a duty to find wholeness within yourself again. It's a harsh truth, but ultimately one that shows more respect for her and her free will to choose her own path. She shouldn't have to feel guilty about where her feelings take her if she isn't stepping on anyone's heels to follow that. And right now? You're wounded. You gotta make sure you heal up without scars. Lest you be doing the next person a disservice. Everyone deconstructs themselves in the loss of something significant in their life. But the best rebuild or build onto themselves afterwards. Otherwise, you just become jaded mess, in which case, I feel sorry for the next girl.

Thanks to everyone who gave me legitimate advice. I tried talking it out but her feelings are just all so complicated, according to her anyway. I just thought that she was the one, but she's really making things harder than it needs to be. So we decided to just stay friends or whatever. Aside from that, I'm also taking the steps necessary to ensure that whatever negative feelings I have don't affect future relationships. I even join a little club where guys just talk seriously about how to treat women, maintaining relationships, etc. I wasn't the perfect guy by any means, but I was, at any time, willing to change my ways. She just didn't feel like she could talk to me about it and we got to this point. I'm learning about myself, so in a weird bittersweet kind of way, I'm glad.

Well, Kaiams, I'm glad you're keeping a positive face. Advice from the internet can be risky to follow, but whatever the case, it looks like you're making what you can out of it. I hope things get better for you and her. Just keep us posted if you need some more perspectives on anything else that arrises.

Heck, one who leaves you and doesn't even try to tell you why, does not deserve your time. don't even bother, yo. just move on. But that is easy to say than to be done. You'd find your other... uh wing . ..

Been there, done that(My last relationship, although that was only 1 1/2 yrs long.). Moved on and found my fiancee/future wife. Life goes on.

I don't see why you apologized to her. You had nothing to apologize for, and that just made you far less attractive in her eyes. I'd say don't message her ever again, but if she messages you back begging for things to go back to the way they were, roll with it.