I'[m] afraid that girls will reject me because of my bisexuality.

That's it. I fear that they won't see me as manly enough (I'm not the macho style and had sex with a man before), and I'm already unskilled in relationships, so the idea of reducing the scope of my flirts to non-prejudiced girls in this regard scares me. I'm afraid to be alone my whole life, or worse, be in a relationship which I deslike just to not be alone, with a horrible ugly woman.

Have some of you guys been there?