I don’t know how to address this

One day I was with my boyfriend at the time and we decided to have sex that day. We finished for the first round. He wanted to go a second round, but I didn’t. He wanted to continue right after he changed condoms but I kept on telling him to wait, to be patient. (It was my second time having sex altogether) he didn’t wait. He turned me around bent me over and still had sex with me. At the time I thought that’s just couple stuff it’s ok. But we’ve broken up and I can’t get this memory out of my mind. I don’t know what to do now. Nor do I know what to think.