I’d be pretty creeped out if someone tried to “ship” me with someone at random like that, especially if it’s someone who barely knows me. I’m not a character in a fanfiction – I’m a real person, for goodness’ sake! You can’t just write out a “character” if the match you just tried to set up fails epically! (And there I go speaking nerd-style.)
Personally, I would only set up people if I knew they’d honestly have something in common; otherwise, I wouldn’t try to meddle with someone’s personal life like that. And, of course, I’d only say anything at all if they tell me they want my advice.