<human>: I really don't want to sound like a bad person, I do my best to be the best that I can to everybody. I really like this girl, personality-wise, we're pretty similar, we've spend a decent amount of time together over the past few months, and we are planning to spend Valentine's Day together (she asked if we could, and since we're friends, why not. We both acknowledge we have feelings for each other) and I am looking forward to it.

That being said, for some reason, I'm put off by the idea of a relationship with her. She's a great girl, I REALLY enjoy being around her, because she reminds me a lot of the things about myself that I like without any of the things that I dislike. With that being said, I've always had very strict standards for what I'm looking for in relationships, and that isn't the case here.

I don't want to make it sound like I don't think she's good enough, because I actually sit here thinking about how she deserves the best she can get, and I know that I may not be the best for her simply because I am so on the fence about my feelings.

I think her personality is amazing, but I'm not fully attracted to her physically. Like, I'm not sure if I am, as shitty as that sounds. I know relationships need compatibility, and attraction, in all ways, and if I'm not physically or sexually attracted to this girl, anything I try to pursue beyond friendship is bound to fail. 

As everybody can probably tell by now, I kind of feel guilty about all this. I haven't tried to pursue anything because I don't want to string her along in case I can't follow through, but even the idea that it **COULD** happen has been going through my head over and over.

Can you summarize the given text in a few sentences?
<bot>: My own insecurity, "standards" and lack of a 100% physical/sexual attraction seem to prevent me from pursuing anything with a girl I feel very emotionally compatible with and have mutual "feelings" for.