<human>: Can you condense the text into a few key points?

I have never had a problem with confidence.  I don't feel nervous when starting a conversation with a stranger, giving a performance on stage, or voicing an unpopular opinion in a group setting.  Sometimes I find that I am too independent; if I had plans to go to a bar with a friend and they cancel I'll still go alone, or if I'm in the mood to eat at a restaurant I'll go by myself.  I'm happy with who I am and my opinion of me is not altered by what others think.  

Although that may seem like a positive attribute, I believe that one reason I am single is because I find it scary to let somebody else decide how much they care about me and define my image.  A coping mechanism I use is that whenever someone develops feeling for me, I don't believe them.  I make up excuses like "they don't have any other female friends so I'm the only choice," "they are going through a short phase, "they want to date just to be in a relationship."  I'm not in touch with my emotions, so I try to logically understand why someone wants me to be their girlfriend and I have never come to a clear conclusion.  But, even if I don't understand love I shouldn't be so insecure to believe everybody who confesses their feelings for me is a fraud.  Has anybody else gone through this?  How did you get past it?  

My second question is half out of curiosity because it is something I could see myself thinking and not experienced.  It is important to respect and admire your significant other, but often times I will hear someone say that their partner is out of their league and they were lucky to be with them.  Is that a normal feeling?
<bot>: I don't believe guys who ask me out have real feelings for me, how do I fix this?  Do couples in healthy relationships think their partners are too good for them?