Feeling excluded after my friends went on a trip to Manali

I’ve been part of a friend group for over four years, and I thought we were close. Recently, I called one of them, and they excitedly told me they were all in Manali—*and it was snowing there*! Everyone in our group was there—except me. No one informed me about it, and it honestly felt more like a taunt. What stings is that I’d been asking them for months to plan a trip to Manali, as I really wanted to explore the place, but they never seemed interested. Then they went without even telling me. I was so shocked that I ended the call, pretending there was a network issue. This isn’t the first time they’ve done this; last year, they left me out of plans too. I feel like I’ve always been the outlier in the group, and it’s honestly hurting me. They’ve been my only friends for years, but now I’m considering cutting them off and even moving away because I can’t live with them anymore. TL;DR: My friend group went on a trip to Manali, a place I had been asking to visit, without telling me. This isn’t the first time they’ve excluded me, and the way they excitedly told me about it felt like a taunt. I’m thinking about cutting them off and moving away. How should I handle this situation?