Well, that title certainly is quite accurate when it comes to Hentai. Usually in Vanilla it can go either way, but as long as Sweet Vanilla loving is involved, I'm happy.
Sometimes, Mr. Protagonist, there is no point asking why or how you are in that particular situation...You just accept that you are a Hentai Protagonist and go with it, yes? No point resisting.
Great ending. He got a new girlfriend who actually loves him and she gets out of a marriage interview too.
You could see it like this. Or you could say that she ditched a meeting with someone she had no interest in and chose to go with the one she actually loved.
I loved this it was cute and sweet on the part of the girl. She no longer needs to go to arranged marriage interviews, but he needs to meet her parents now.