@Daystar, I know exactly how you feel. My ex girlfriend of 5 years left me last year when I got hyperacusis and tinnitus. She said that I'm always ill and inside and she couldn't see future life together and left me. Only 10 months later she's married. I forgot about her after a month or so but had her in back of my mind. And seeing posts she's married now makes me think she was with this guy behind my back.
Not saying she's done this with you but she may already be speaking to someone and thus comparing your relationship to what could be with the other guy. I know that was my case. I really hate the guy who wormed into her head. The guy was better looking, drove better car, had better career prospects, oh and had no ear issues. I don't blame her for picking a better prospect I guess.
But for real I know it's hard. I can't offer much advice because I'm reminiscing old times as well, but all I can say is if you have family you're close with, reach out to them. Everyday I live for my family.
Best of luck to you my friend hope you feel better.