I too have felt the same way about not being able to fall in love. I'm a heterosexual male, so I can only identify with some of what you seem to be going through.

For years, I thought I'd never be able to find love. Women are always interested in me, but beyond the desire for sex and intimacy, the feeling is never mutual.

Until last tuesday. BANG. found her. Thank god!
Now all I have to do is convince her to fall in love with me.