Storytime: Was I wrong for saying no?

So I was talking to this guy and I wasn’t really looking for a relationship because I was leaving for college soon and I just wanted entertainment and sex on the side. My first red flags should’ve been when he posted misogynistic things on his story and then our first time having sex he couldn’t hold it in for three minutes and he came inside of me without permission (I wasn’t expecting to have sex and was caught up in the moment and completely forgot to tell him to put a condom on) afterwords it’s very weird. I drove him to a CVS and he bought Plan B pills. But I didn’t take that as a sign to leave and still continue to hang out with him, I drove us everywhere paid for gas, and even paid for food. I was giving more than I was receiving because sex with him wasn’t even good he was small (which there’s nothing wrong with that but he wasn’t using it properly) he also couldn’t eat coochie well either. I was leaving soon, so I just stuck with it. one day I asked him if he wanted to go out with me on a picnic because three days prior he made it known that he would like to spend more time with me and hang out with me more and he simply said no me being petty I replied with a “ok” and never talk to him again. then randomly I got a call from his little brother who I knew for longer than him, and saw as a younger brother, his little brother called me and asked me to pick him up from the gym and said he was stranded me, had just woken up and was busy cleaning my room said no plus my car need a new brakes so I didn’t want to leave the house. Usually I would’ve picked a little brother up I’ve driven his little brother around before but while I was on the phone with his little brother I hear people talking in the background and asked his little brother, if it was just him that needed a ride and he said “ no, it’s me and my friend.” So me feeling bad I was trying to figure a way to get them Uber but I hadn’t told him yet then I randomly get a text from the guy I was messing with telling me that I should come and pick his little brother up, it turns out he was going to be there, too, but he was too scary to text me himself, so he asked his little brother that he knew I had a soft spot for to call me instead of asking me himself. To this day I feel bad for not picking them but I felt like he was using me for my Car in that moment. Oh and I forgot to mention. The reason he said no to going out with me was he started dating my old coworker who’s younger than us btw she was 16 and he was 19.