I Faked Being Busy to Skip Lunch with Friends

So uh, this is kind of silly, but I fibbed to my friends the other day. We were supposed to meet up for lunch and catch up, but honestly? I was just too lazy that day. I sent a quick text saying I had an emergency meeting for class, which wasn't true at all. I felt bad about it afterward, especially when they messaged me with pictures of their yummy food later. Still not sure if I can face them again without blushing.