My parents 😫

So I've been with this guy for 3 years now and my parents don't like him. He has never done anything wrong against them, it's just things in the past that's happened with his parents and my parents. What do you think I should do? I love this guy so much and I never want to lose him but I'm just over listening to my parents brag about him and say mean stuff about him in front of me. Please help?!