Today, I was in my last class and someone messaged me asking

Today,
I was in my last class and someone messaged me asking if I was still in class and I said 'yes' and then they gave me a frowny face. I asked why and they said that they were lonely and wanted someone to hang out with during their break. If I had a break too, I would've considered it but when I have no more classes for the day, I'M OUT. But on my way out, I ran into a couple of friends I hadn't properly hung out with in a while and we just talked and I spent an entire hour with them even though I told the first person I couldn't hang out. I feel like such a horrible person...