For many years now, I've sat and watch my younger sisters take pictures of themselves over and over again. Posing this way and that way. They are very slender and attractive. On the rare occasion they will ask me to join. So, I do... We take one/two, and when I walk away, they continue their photo session. It doesn't matter who is around either. Then they post these pictures on their facebook. I'm never part of the picture...
I'm tired of it. Am I being unreasonable to be hurt? It feels like since I am larger and not as attractive that they don't want me to ruin their picture.
I could be sitting right next to them, and they will take pictures and not include me.
My sister says I am over reacting and she would never be upset if it was her. She would jump right in and take pictures with us, and no harm done. I said, it would be NO big deal if it happened once in a while... but ALL the time!?? She says, when we dress up we like to take pictures! Okay, I was dressed up that day and feeling pretty good...guess I don't count.?
If we are all invited to someone's house for a special occasion, they never take pictures of everyone else, and the activities. They just do this photo session in front of everyone with just themselves. I think it's rude. They don't include anyone that's there.
I'm so sick of them talking about how I was a model and weighed Xamount... GEE, that was almost 30 years ago!! Guess if I weighed that, and looked that way I would be included in their sister pictures... 
I said, if you guys want to do this Sister Photo Session, then do it on your own time...esp. since it doesn't matter it bothers me, and makes everyone else feel uncomfortable.....
Am I being unreasonable?