Maybe when you were in depression, they could feel it. Or maybe it's because you try to date 20's girls. You seem a bit intense, that can be scary.
Maybe its the women you choose.
Dunno. Honestly, some women are just not relationship material. They are messed up.
It's hard for a man to be friends with a woman without being put into a category right away. If a guy isn't forward enough from the beginning he runs the risk of being "friend zoned" so basically you need to be less nice and more lecherous. :) I'm going to get arguments on this one I can feel it already..
Don't know then. How come all the men I like are always douche bags? :P