Father in law problems

I see a lot of posts on here about problems with mother in laws but i have problems with my (future) father in law.

He's always making references to how my SO is whipped, making fun of him, sometimes even just when i say i don't like something my SO is doing his dad will make the whip sound implying that he's whipped.

For example, from the very beginning me and my SO agreed that we didnt like each other going out and drinking unless the other is also there (for safety reasons and it just makes us more comfortable that way). Well during my graduation party i drank one beer because my aunt bought them for me and because my SO was there. I started drinking it and my SOs father flipped out! Like seriously started yelling like "i thought you didn't like him drinking?! But you're drinking!" And i tried to look at my SO to hint to him "get him under control please, he obviously doesn't understand the situation".

Other times as we're about to leave his house his dad will be like "so when will you be home" but then turns to me and is just like "oh wait, i should ask you. When will HE be home?" Which annoys me. And he also does the same thing whenever they're trying to go somewhere or plan something he'll look at my SO and be like "tell her! Tell her! Make sure she knows!" So i just roll my eyes because I'm sitting right there so obviously i know whats going on.

That and his dad will just make plans for him without even asking him or hinting to him or giving him room to be flexible about them. (Keep in mind my SO is 24). Like he'll just make plans for my SO and if my SO is like "but i already have things that day with LeAnn" his dad will just be like "i don't care, everything is already set so you're going with me/us".

This kind of stuff has been going on for over 2 years (we've been together for 3). I just don't know what to do and it's to the point where i don't even go over to his parents house with him anymore and avoid events where i know his dad will be at.