My friend started hanging out with and posting my ex after I cut him off

Hey, so I'm not going to be using a fancy font for this since its a vent and everything, but this has just been really bugging me. I know my friends are allowed to have their own lives and be friends with who they're friends this but this started really soon after I cut him off. Like, less than a week or so. I cut him of because he did a few of things to make me uncomfortable, especially after we broke up. 

Ever since I cut him off, he and my friend have started being even closer than before. We'll call him Kralie and my friend Vinnie. Both use He/Him pronouns. Anyway, Vinnie has been posting videos with Kralie a lot, even posting videos of them together when he said that he and I couldn't hang out because he was moving. The pair were in cosplay in the videos. 

Vinnie has been going on live stream with Kralie a lot lately and no matter when I ask if Vinnie and I can hang out, Vinnie is suddenly busy with friends and, sometimes, family. It hasn't been the same since I cut Kralie off. I've also just been more isolated this summer due to all of this. I last saw a friend in person in June and the only person I talk to that's in my town is Vinnie. I hardly get out of the house and I just wish I could actually see and hang out with someone I know. 

Thanks for reading, ✰