especially when his father is date-raping his way through the student body
Whoa, partner. I am no fan of Burke, but we have been given exactly zero indication of any date-rapist style activities.
He has likely been shagging a few fair college student prostitutes, but that's merely a business transaction between consenting adults.
As for Tybalt redemption? Not going to happen. The MC has (potentially) fucked his mother and sister, but he has no girlfriend -just his watermelon.
His humiliation is not complete until the MC has had his larger family connection revealed and is able to lord it over Tybs properly. Gets the girls, gets the better parties, has more money (even if he gives a lot of it away for some plot contrivance).
Tybalt thinks he's better merely based on his family having money, he himself hasn't much of anything. The MC will therefore wind up with significant money directly.