Friends with Benefits ??

Me and this older guy have been messing around for awhile. Only my bestfriend knows about it and he asked for it to be on the down low. I'm sad to say it seems like it's the freshman and senior hookup cliché. I'm fine with being fwb but he has recently confused me by saying he loves me. Even if he were to ask me out he's 19 and it would probably start a lot of trouble. Please give me some advice. I don't know whether to just drop him or not.