explain to your bf that even though they are friends he is a grown up man and will never try to get anywheres if he has others doing things for him.including attempting to get a car..because he doesnt need one if he has no problem getting rides so your bf is enabling him.to be honest it sounds like hes being taken advantage of but dont tell your bf that because more than likely it will cause another fight as he probably thinks your just jealous of the friend.so tell him to stop feeling bad and enabling and tell the friend NO for his own good!~hopefully this helps..if not then you need to just be straight out and say its your apt. to and you dont want him there!but DONT make him "choose" between the 2 of you,or seem like your jealous,or talk about how no one likes him to your bf because it will just cause more problems between the 2 of you.if theyve been friends longer than hes been with you then he might be sticking to the stupid saying"bros b4 hos".~good luck~