I don't know what is wrong with me?

Ok so I have no idea what in the hell is up. I must let things get to me way too much or focus on the most irrelevant things. So I cannot tell if girls like me or want to get to know me. Like at work today there is this one girl in particular that I want to ask out sometime, we've bullshitted back and forth a few times but never really had a good conversation. There are times when she talks to me and then there are other times where she just responds with like one word without looking me in the face. I'm just so clueless and it really really takes up a lot of my thinking when it shouldnt. It isn't just this one girl...it is any girl that I find pretty or that I would like to know. Like I know I'm not ugly but I just can't figure girls out. It just bums me out that I want a girl so bad to cuddle with and hangout with and just love...someone who I can connect with and share anything with, to take care of and protect. I know I should be content with myself and let girls come to me but it really doesn't seem to be working out that way...idk if I'm just boring or unattractive or what but I could really use some help...its pathetic
I don't know what is wrong with me?
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