(19M) A girl I dated doesn’t want to talk to me anymore, and I don’t know why

r/

Hello. Today I (19M) went out with a girl (18F). We stayed at the bus station talking and walking around. I managed to leave by begging my mom to let me go. My mom ended up going with me to see the girl and came back soon after. I really liked it; we kissed. We’ve known each other for 4-5 days. We’ve been texting and even said “I love you” to each other. It turned out that in a corner at the station, I ended up grabbing her br**sts and *ss, and she almost grabbed my d*ck (sorry, i don’t know how to explain that in another way). Another thing that also happened is that when I went to order water at a store, the guy asked, “Do you want anything?” I thought he was offering me something that wasn’t from the store, but then I realized he worked there. I asked for water a little awkwardly, but everything worked out. A while later, she wanted to go home earlier than we had agreed. When I got home, we started talking normally via text, but she ended up getting really offended by the water guy thing. She said that even though she had a real opportunity in the future, she didn’t want to have sex (regarding the touching, she wanted it at the time but then said something else. We talked a lot about sex-related things via text) and then said she didn’t enjoy the day. Did I do something wrong? Then she started saying I was a spoiled mama’s boy who can’t walk alone (she left home without telling her mother). Monday, I went across town, convinced my mom I was going to see this girl, and she let me. I had gone to her school, so that was the second date. Later (tonight, today, after the second date) she said she didn’t trust men and didn’t want anything serious or a relationship right now, and that I’m not ready for one either. I really don’t understand. Am I that embarrassing? Is it normal for her to be like this just because of a request for water? Tonight she said she didn’t understand herself and her feelings. I understand how I feel, and I wanted something serious with her. I asked her to be my girlfriend (this afternoon), and she complained via text this evening that she didn’t like it, and I apologized and implied that we could try to make things work over time. It turned out that a few minutes ago, she said she didn’t want to talk to me anymore, ever again. Am I an idiot for wanting something serious? Am I an idiot for just learning to be independent now and having my insecurities about my family? I’ve always been intense, and she doesn’t seem to like that. She was so happy to see me before the date. I don’t know what to think.

TL;DR: A girl I dated doesn’t want to talk to me anymore, and I don’t know why. It’s my fault?