A friend invited my family to a very small outdoor gathering for the 4th and we went. She did not invite another good friend of mine who is also a mutual friend. I hesitated whether to mention it to the uninvited friend and ultimately didn't but then it came out and it's fine but I feel like it would have been better if I had said something so it didn't seem like I was hiding it. But it felt weird to say something at the time. How do you usually handle these things?