We went out with his 2 sisters and their husband tonight. They are so nasty to him, they both have degrees and he doesn't so they take the piss out of him for it saying things like "shall I explain it in simpler terms so you can understand". They also mock his car and at the end of the meal one of them sarcastically waved some notes in front of his face.
This isn't the first time they've done this and it really upsets me to see him belittled like this but he insists its just teasing and that they maybe they go too far but they don't mean to be malicous (he thinks they love him and would be there for him if needed). I think its very deliberate and nasty and frankly if I/we never saw them again then I wouldn't mind as it upsets me to see them belittle and humiliate him like this, why can't he see it.