I just hate bad predictable writing. Feels like the writer did not think this far ahead and just now realized mc has to pick a girl and readers might be sad about the other girl being alone. So we get a new character inserted 40 chapters in literally just for that. If I'm right and that is what's going down... it is very lazy and pandering. Though to be fair it could be from editorial pressure and not the writers fault, but that sucks too.