If the brother is gonna play the same "my sister/daughter needs to marry someone worthy"-card like the emperor I'll riot.
I kinda get it tho. He got no idea how truly over FL is with Spencer, that it's not just the supposed amnesia. So now that his homie is finally reciprocating those feelings he feels obligated to play cupid.
NO scratch that, his sister got replaced overnight. Both he and Spencer are chasing a ghost that's no longer there. Oh golly gee.