I assume you mean my roommate's other boyfriend, right?

[Because that was the first thing that would spring to mind.]

I will admit, Prompto and I once had a talk about what would happen if Merciless did leave...which has unfortunately happened. I did say about them wanting to invite the other because I honestly would have fully expected it, but Prompto said he'd be happy if you were there and that they were okay with the routine they have.