My significant other wants me to attend his families Christmas events.
That seems normal. Why don't you want to go?
I can't stand their bullshit, they are always fighting amongst themselves.
You should still go even if you don't want to. It's important for them and if you are together you should do it.
Maybe I'll go. Hit me up if you want to go clubbing though so I can ditch. .
Don't ditch, you should go even if things won't be as much fun. Your partner needs you there when he has to deal with family.