I keep reading this thread and hoping this happens with the guy I really and truly want to be with. It wasn't a painful breakup at all, he just disappeared to deal with his issues, not to mention I'm dealing with my issues. If he doesn't come back could I move on? Yes but things will be different. The idea of having sex with a man not him or having kids with a man not him repulses me, even though we never had sex. I'll see photos of elderly people and imagine it's us as we age. Only time will tell if I end up with him.
I will say this though, in my personal experience almost every couple that I've known has reconciled. Some ended up getting married and happy, while others did breakup eventually. I suppose it has to do with why the couple broke up to begin with. Almost every guy I dated, guys I dumped and ones who dumped me all wanted me back. I briefly took back two of them (one was a very amicable breakup) but the reasons we split up ended up being too great. For instance one guy and I broke up simply because he wanted to marry and me to convert to his religion, which I refused to do. We got back together a year later because we still liked each other but this was too big a problem. The other guy told me he changed his life (he was an alcoholic) but realized he didn't so I dumped him again. However, my parents and my brother and sister in law broke up while dating and they are all married.