OK, so here is the story:
GUY plays bass in a band, drinks heavily, smokes weed, dabbled in other drugs, not to smart, steals, been in a number of sexual relationships as well as long-term relationships.
girl is smart, more than likely going to cambridge, doesnt do any drugs, studys hard, very sensible (apart from drinking) never been in a relationship.
both are 17/18. They are both really good friends of mine. the Guy has been a good friend of mine for a long time and we've been through a lot together. girl i have known for ages but only really been friends with for just over a year, have become very close.
girl has been 'in love' with guy for about two years, embarrasingly so in fact.
guy likes (for want of a better word) sleeping around, just wants to party and have fun with girls "lifes too short" mentality.
heres how it is at the moment. they are in a relationship type thing, or something like that. they mess around, they fumble, and if the opportunity arises they have (or have had) sex. at same time guy goes off and does similarly with other girls.
They are good friends, talking lots, and apparently this situation is cool and has all been explained.
My problem is this, I think that in the long run this could do a lot of damage to the girl, i dont think she really is ok with it, i think she is hoping for things to go further. and i think it'll only end in tears.
what do I do? should i sit on my hands, not meddle, and let them do what they gotta do, or should i maybe say something to the guy (along the lines of, "you really dont know how much girl 'LIKES' you") to step back a little??
hope i explained this situation well enough. ask if you dont get it.