I didn’t say anything… but it’s still bothering me

Something small happened today, but it’s been on my mind all day. A friend made a comment in front of others. It was said casually, almost like a joke… but it didn’t feel like one. Everyone laughed, and I did too in the moment. It felt easier than reacting. But after that, I couldn’t stop thinking about it. Not just what they said, but how easily it was said. Like it didn’t even cross their mind that it could hurt. I keep going back and forth in my head — Was I overreacting? Should I have said something? Or am I making it bigger than it was? The annoying part is, I’m not even angry at them fully. I’m more frustrated with myself for not saying anything. Because now it’s just sitting with me, and they probably don’t even know anything was wrong. I don’t know if I should bring it up now or just let it go. But clearly, I haven’t let it go yet.