Wilkes wasn't really sure that he wanted to...find a wife, or love, or whatever Sage was implying that he do. He got enough of that from their mum. When are you going to settle down, Ophi? Find a nice pureblood girl?
"I dunno...she lets me copy her work. And plays a good game of Quidditch." That was Wilkes: he only liked people if there was something in it for him.