mil Drama, Why does everyone including me have this problem?

This may just turn into a rant.
Since the beginning of mine (25F) and my fiancés (27M) relationship his mother has been opinionated and meddling.

We were long distance at first and he lived with his parents so I would stay with them for a weekend while we were dating. We new we were going to marry each other at the beginning but I wasn't going to bring this up to his parents that I had only met twice. (I'll come back around to this)
My fiances boss has a suite at a NFL football stadium and my fiances father is a big fan of the team, so he had already arranged for his dad to go that Sunday and I was going to go home Saturday. Well