I don't know what to do ????

I don't know what I'm doing I'm 17 going out with a 27 year old and when we first started talking he was lovely we were talking alot then the first time I met him he yelled at me then we had sex I didn't really like it but then we saw each other again and he wanted to do that again like without even a how was it day and now he hadn't spoken to me in a while but then he messaged me at midnight

we haven't known each other that long I'm worried he's put stuff on a website also he hadn't spoke to me in a while and he was so blunt about it I feel so disgusting is this normal do u think he cares because I like him sometimes ???