In too deep

I recently met this guy through Instagram, we've been talking for about 2 months and we met in person about a week into talking. He's 27 and I'm 19 and he's already saying he loves me and how he has all these plans to move to California and how he wants me to come with. I am reluctant because i still don't know this guy as well as i could. Two months I'm and I already can't stand some of the things he does the way he talks the way he walks the way he kisses me, everything makes me cringe. He's so in love with me but I am not in love with him i sat down and really thought about whether or not I could see my self with him for the rest of my life and I couldn't, need help breaking it off with him simply although I don't favor him I still don't want to hurt his feelings or hurt him because at a point i did like him.