Please HELP

I have been married for 4y and we have 2 kids. We got married right out of high school. My sex drive is gone and Im starting to analyze our relationship. Ive realized we have nothing in common. I brought this up to the hubby and asked him if there was anything he liked doing that we could start together and he said no. I then told him everything I liked doing that i would like to share with him. He flat out said he didn't want to do any of those things. He went on to say that he was sorry and I could leave him if i wasnt happy. Our relationship has been rocky from the start and I dont want to stay and waste more years. What should I do? We have almost split up MANY times... idk what to do now