So my best friend is going to Florida for spring break and she took someone else with her. This girl is not  one of her very good friends.  she hardly knows her, and I'm her best friend and I expected to be the one to go with her, and when she didn't ask me I was hurt especially because I found out from someone else not her. When I asked her why she didn't tell me or why she didn't ask me first, she said she assumed that I wouldn't have enough money to be able to go with her so basically she assumed I was too poor to go. And now she keeps posting on her Snapchat and Instagram all sorts of videos and post with that other girl who she went with and I can't stand looking at it, it really hurts my feelings. I don't know if I should block her from certain social media for the week or not, and would really appreciate some help. I also don't know if I am in the position to ask her to stop, especially because she's her own person and can do whatever she likes but I don't think she realizes how much it's hurting and she's on vacation so she should do whatever she wants but still it is really hurting my feelings I don't know what to do.