I am feeling left out by my cousins?

[Mariela]

It all started a couple of weeks ago. There are about 6 girl cousins in my family and one boy all of us girls are really close. We all have sleepovers and things like that. The cool thing about my family is that each cousin has a sister I have a sister and the rest have one sister only one of then has a brother. So when my cousins besides the one who has a brother has a sleepover and didn't invite me or my sis it doesn't matter I don't really care. But you know they post it on Instagram saying hanging out constantly and all of that. But when I have a sleepover with them and when they take a pic one of my cousins would crop me and my sis out of the pic! Like really??? That's mean! And they always make collages with eachother and say with my fav cousin and mushy things. So I can see they are closer. But the things they do to me and my sister they talk behind our back. And especially say mean things about my sis, and it honestly hurts my feeling! What should I do please help me!

[Pearl L]

just stay away from them if theyre going to treat you like that