The man is such a 'nice' guy. He is in love with his newly-wed wife. She hates him and only marries him to escape her family situation. She doesn't know how much she's missing out by not loving him back. He loves her and is willing to do anything for her until she accepts him (because you know, he's 'nice'). She doesn't care. He indirectly starts giving her everything she wants. Will she ever come to realize that she is wrong to not have loved and accepted such a 'nice' man?
Yea, that pretty much sums up the movie. It's as if it was written for and by some pathetic, incel loser whose life philosophy boils down to how women would love them if only they knew how 'nice' they are. Sure, the movie is funny at times, but that's not even close enough to distract you from how obviously pathetic it is.