<human>: I just realized this about myself.  Whenever I find a girl I like I try to find everything that is wrong with her without even thinking about it.  From her looks to her personality to her intelligence and even to her family.  I just can't seem to help it.

I realize it might be this wall I've put up since my first relationship ending, about 4 years ago, was very hard to go through but I can't seem to remember if I did it before then. 

I have been in a relationship since that first one which lasted two years but I never could seem to allow myself to give 100% of me in that relationship.  And I always seemed to be looking for flaws in her too now that I think about it. 

Now whenever I find a girl I like I look for flaws in her.  It's as if I'm trying to find a reason not to like her.

I really don't think this is a normal habit and wanted to know how I could fix it.  Also if anyone else does do this why do you? And why do you think I do?  I wanna be able to give 100% in a relationship one day but if I stay like this I don't think I can.

Can you give me the gist of the text in a nutshell?
<bot>: Why do I always look for flaws in girls I like? Is this normal? I wanna fix this issue of mine.