I think that's already been pointed out to him many a time....
I'm 16 and still have to face the fact that my mind works overtime making things up which aren't true because I'm actually not completely mature, even though some say I have the mentality of a 30-year old, my girlfriend for instance

She is the first one I've had, and it was all her enticing which got us together. All the girls I wanted to go out with before I found to be too stupid, but we were friends for a whole year before actually going out, so I don't think we'll break up that soon... But at the end of the year I'm probably going to move to New Zealand, so that will be the end of that

She plays the violin, but I can't persuade her to enjoy playing the piano yet

Maybe I should give her an inspiring lesson without being arrogant and just full of creative and musical content, then she would start enjoying what you can get out of it.
meanwhile getting freaked out at not seeing her for 4 weeks....
Yeah, I would second that going for a girl purely for "romance" is not necessarily a good thing and can have very, very bad consequences, but if it works, all the better!