Boyfriends parents

They’re horrible! His mom calls be blonde (dumb) his dad gives me the dirtiest looks ever. And they have the cheek to call me disrespectful! I’m polite as I can be for people I hate and how can they say that I’ve not seen them for two weeks. They hate me I hate them. They’re so controlling of my boyfriend, they say what he can and can’t do. When he can go out or when he can go on his phone, they even read his messages, private messages. What do I do? For now I’m just not going round his house so I’m avoiding them.