Well, this sounds like a pretty confusing problem. Now, maybe what you can do is get to know the girl before you make your decision. Once you do that, then you might be able to see what kind of person she is. Just try it out. If it doesn’t work out and it doesn’t have a negative effect on you, you both will be better off. We know how hard it is when someone you may have mixed feelings of based off of first impression wants to be friends, but I think this is the best way to go about your tough situation.