"Making fun" isn't quite right, but they were definitely being sarcastic. I think people throughout this thread are encouraging you to be less self-absorbed so that you can 1. Enjoy things around you without feeling like you're being judged for it, and 2. Develop empathy for those you interact with.

I know it seems trite, but it's important to realize that social interactions are way more fun if you pay attention to other people and are curious about them.