Getting fingered 😭😪

My boyfriend and I were at the movie theater. He turned me on by kissing on my neck and basically rubbing my thigh and etc. I told him I wasn't ready to be fingered yet and he got very upset and kept trying to do it but I said no. And every time I tried to focus on the movie , he put his hand and massaged\grabbed my vagina on the outside of my pants. I got really wet and I really wanted it , but at the same time i didn't. How do I get to know my body , and what it wants ? This is a very serious question for me 😭.