Since when do people this age know what love is? In my opinion, anyone in "love" at that age is just following a trend set by peers/previous generations or is used to gain popularity... Just sayin'.
Why would someone who still likes to climb trees want to have a serious relationship and want to settle down with their lover? I mean really, they still market nappies in supermarkets for that 15 year old age group - no joke. It says a lot really.

Not being offensive to anyone who feels they are, I just don't believe in it and find it difficult to comprehend. For those that disagree, please explain... (Rant over)

But yeah, back on topic, he should probably just forget about her if this just keeps happening because it really seems like it's not working out.