Your ego can be your best friend or your worst enemy. Mostly the latter though. This exact thing, when you feel dumbfounded when a girl you are crushing on picks a fat ugly moron over you - your ego deduces that you must be a worse choice than a fat ugly moron. And you say, but I'm not. So there is this flabbergasting conundrum that makes you want to smash things. You have to try to learn to let go. You don't know what really happened, you need to focus on yourself, understand that opportunities come and go, and one opportunity went down the drain so off to the next one. Also, desperation and neediness stink miles far and all women have a nose.