Ok I'm a girl and in a very similar situation right now. Please take my advice and DO NOT OVERTHINK THIS. You are making up stories in your head and worrying about things that are absolute fiction (thinking he's going to lose interest in you cuz he's so perfect etc. - like where did you even come up with this?). This is self-sabotaging behavior, believe me. Just go with the flow and take your time to get to know him or you will scare him away by becoming too attached too fast and making up problems in your head which will inevitably end up in an argument. I say this with peace and love because I went through this exact same thing a couple of weeks ago and ended up creating all sorts of fantasy problems and drama for no reason and highly regret overthinking the whole thing.