I guess think I'm pretty, what could it be? (little long)?

I was in a relationship for 5 yrs that has ended. But no guys are hollering at me. I've been told I'm beautiful, pretty, gorgeous by so many people, mostly women; people literally stop and tell me this, but I'm getting nothing. I'm not ged up over it either, I'm dissatisfied with my looks but I keep my self looking nice so it doesn't show. I know I tend to not look guys in the eye and act shy, but I don't think that's a real big deal. So I guess additionally I'm asking whether guys need physical cues to talk to a woman or is it straight attraction? Could my self-loathing be visible?