Am I in the wrong for being mad at my best friend for choosing someone else over me?
My best friend of 13 years and I are both 18 and at the same university. About four years ago, she met a guy online via Discord who is a few years older. Over time, his behavior creeped me out—he spent hundreds of dollars on her, was completely obsessed, and forced her into making every decision for him.
I stopped talking to him a while ago after he made uncomfortable misogynistic/racist jokes and asked me to do and to send him the results of a se*ual kink quiz when I was 16. Despite this, my friend kept hanging out with him constantly, even bringing him on calls during our irl hangouts and inviting him to our gaming sessions without telling me.
Recently, the three of us hopped on a new game. He started making insulting comments toward me, and when my friend temporarily disconnected, his attitude shifted completely. He told me, "I don't like you, you're only here because she wants you here, and it wouldn't make a difference if you left." Hurt, I left the call. The next day, I explained what happened to my friend. She apologized, and I told her I no longer wanted to play as a trio. She said she understood.
The very next day, my grandmother passed away. That evening, there was a sports game that my friend and I *always* watch together. When I asked her to watch it, she lied and said she couldn't because she had to study. However, once the game started, she texted me detailed reactions about the plays. It became obvious she was watching it with him instead—even though he doesn't even care about sports.
I am incredibly hurt that she lied to me just to ditch me for him, especially while I am grieving and needed my best friend there for me. Am I in the wrong for being mad at her?
Note for more detail: the guy is 22 and they met about 3~4 years ago. You guys can do the math. Also, he’s not from the same country as me and my friend, but they met irl about 3 months ago. Also, when I say he doesn’t care about the sport, he really doesn’t. He played Lego games Everytime we watched.