What do you think of me getting married against my dad's wishes?
Is it because your dad hates your boyfriend or is it something else that makes you get married against your dad's wishes?
He cheated on my mom all the time when they were married. It was one of their secrets.
Marriage is a big deal and it sounds like you did it on purpose to piss him off because of what he did to your mom. You shouldn't do something out of spite because such a decision usually is not made with a rational mind. Revenge is never the right thing to do.
He deserves it.
Revenge is not a good motivation for behavior. You are likely to make bad choices you cannot later take back.