<human>: My roommate was hooking up with a girl [20 F] (Sarah) and they set me up with Sarah's roommate [21 F] (Julia). 

Basically after that we'd all usually just hang out as a group at our house and then we'd split up into seperate groups and have sex.

Things aren't going well with my roommate and Sarah, so he's going to cut it off with her and he says I have to do the same with Julia because 'he gave her to me.'

Obviously I'm writing this because I don't want to end things, but I know my roommate will be obnoxious as fuck about it if I don't. He holds grudges, like big time holds grudges, over stupid shit.

and I'll be honest, I don't really like Julia that much as a person. Like she's fun and all, but it's never going to be anything more than it is. It's really just a sex thing and my roommate knows that. I think that's why he expects me to end it.

Anyway, my point is, is he being reasonable or unreasonable?

Give me a shortened version of the text
<bot>: Roommate wants me to end things with my FWB because he set it up. I don't really see any reason to end things. Is his request reasonable?