how long has this guy known you? enough to call it "love"?! and then he is trying to put down your relationship of 8 months. i think he sounds very immature.

you aren't responsible for his feelings, you are only responsible to you (and maybe to those you love - your boyfriend). like rose said, tell him to stop pestering you. that you won't stand for more contact. how long will he be living with you? how long until your boyfriend returns?