2 variants of human life are shown.
The director wanted to show that in one version the hero is rich, but without a family and a loved one. And in the other case, he's with his family, without money, with a lot of problems. But for some reason, the hero prefers the option with a family and a lot of problems. It might make sense if the woman she gave up for a career was really beautiful and of good character.
What's the fact?
This girl is very bitchy. A man gets sick all the time. Shows that he treats him like an unintelligent child. He tries to improve his life and achieve something good. "Why are you trying on an expensive suit, let's get out of the store, forget we're poor, stupid?" "Switch off the TV, forget you can't watch when I don't let you." And the man did not achieve anything in life precisely because of his relationship with this bitch who criticized him and told him that he was a helpless moron. And in the variant without her, the man has achieved success and is very happy with his life.
This was shown skillfully and very accurately. Although the director meant otherwise.