Should I be upset or not?

Okay so this is kinda long, I have friends that I have known separately since I was like 12 years old. I’m 23 now, and they did not know each other before my wedding but they were all bridesmaid, well I had drama go on during my bachelorette party and 3 of them pretty much turned against me.. (that’s a longer story) 1 of them was my maid of honor and I had known her the longest we grew up like sisters. Anyway the wedding passed and she still talks to me every now and then, but the other two is like I never existed after the wedding.. I got married in September btw.. well one of them is always going out of her way to invite the other 2 and she snapchats every minute of it.. she even sent me a Snapchat and said she “accidentally” sent it to me.. but they hang out like they are bff and the only reason why they even know each other is because of me? Should I be upset or am I being childish.?