I already don't like the Go guy. It was decided the moment he said "there's no one who doesn't like dating. You just haven't found someone who suits you." He's also a bit pushy which is a turn off.
@toomanywords I don't dislike him exactly but I would hate to be approached in that way personally. It's embarrassing at work especially. Even as a reader, it's easy to see how can he can just play all of it off as he's just a friendly guy etc. if she were to catch feelings before him. He is pushy indeed.
So far I don't dislike because he hasn't done anything to harm the MC.