I need help

Okay ladies. I have been talking to this guy on and off since March/April. At first he told me i was moving too fast, so i quit giving him as much attention & whatver. then I moved 4 hours away from him at the end of May. We have talked on and off since then and I went to go see him a few times. But because of how he has treated me in the past (telling me im weird, telling me im toxic/manipulative) im scared to get more serious. Currently he is so into me. he wants me to move in with him at christmas break, he wants to get married, have kids, and it’s scaring me. I don’t know how to tell him in a nice way, because he gets very offended and butthurt and defensive when i bring things up that he doesn’t agree with. he is very stubborn. I like him back, but im still young. i’ve told him multiple times im not ready for all of that yet, but i quit because he is stubborn and it won’t get through to him. can anyone relate or read this and give me advice??? please:))))!!!!!