Most Helpful Guy
I guess you haven't found anyone else since then right? I big part of it could be loneliness, you miss the feeling that being with someone special gave you and given she's the one that made you feel that way, you think about her all the time.. And you associate it as her that you need... When in reality there are many many girls out there who could make you feel the same way. I'd just try and focus on other things, I'd be lying if I said I didn't think about my exes either, one in particular not a day goes by when I don't think about her... But that was a different chapter in my life and I've moved on, thinking about her doesn't make me feel sad anymore like it used to, it's just a normal thing and I accept that.