Why do only unattractive guys like me?

This may seem really low, but I mean it as in personality and looks. Whenever a guy likes me, they have one or the other. At the moment there are two guys that have feelings for me, one with a good personality but not that good looks and one with great looks but a horrible personality. It's really irritating me because it's happened so many times before, and most of my friends have a partner with both these traits. It makes me feel sad to the point where I want to cry because I feel like no one will ever love me like that.