Sucks man,
I put my woman through a lot, but she stuck through. Feelings are crazy shit, I see people go through this kind of crap all around me all the time.
Everyone that I have known, aside from my parents have split up. Married or not
People just grow apart - Or one goes south & does something bad enough for the other one to wig out
It'll be aight, feel lucky that you have no kids together. It will make shit 100x worse