I feel confused about my own emotions

I was in a relationship for four days. It was short, I understand, but me and this girl really liked each other I think. We got really close really fast. We told each other about our hopes, dreams, traumas. We talked so much and we even slept in the same bed together twice.

She broke up with me because of her trust issues. During the first week and a half I was very very upset. I wanted to text her so bad, but I was afraid she would say something hurtful. Eventually I reached out after 1.5 weeks. She said she was sorry for hurting me. She thought I wanted her just for sex, and she was sorry for not giving me a chance to prove her wrong. She admitted to having trust issues. After that I apologized for making her think I wanted her for sex.

She left me on read and we haven’t spoken in about a week. In this week I hadn’t even wanted to text her. I miss her just a little bit. I am confused about myself because I loved her a lot while we were in a talking stage, and while dating. And right after we broke up I wanted her back very much. I would be quite upset if she has a new boyfriend. I thought she liked me very much. I’m sorry if this post makes your head hurt.

I am so confused by the way I feel, and the way my feelings changed. Is there something wrong with me?