We started dating when I was 12 and he just turned 30.
That is pretty young, how did you feel about it?
I'm already 21. I really didn't like it when he was touching me.
Dating if you are a 12 year old is very frowned upon and illegal. I worry about the psychological trauma that you may have experienced and I think right after this I would be reporting the person that you are dating to the police because that is child abuse. I suggest that you end your relationship with him, and find someone your own age that you will have deep connections with.
I love him though.
It isn't love for a 30 year old man to date a 12 year old. This is grooming and abusive behavior. There is support if you need to escape from him, you might not see it now but one day it will hit you like a brick wall.