Having issues with my best friend

My friend and I have been bffs since the 5th grade. We recently reconnected after she broke up with her bf of 6yrs & were hanging out more than ever & texting at least a few times a week.

We had a little fight in September when she got too drunk at my house and was kinda hanging on my boyfriend. We've since talked about it and I told her I forgive her.

Fast forward a few weeks & she started talking to this new guy she met on tinder. He likes all the same stuff as her & she tells me shes in love within 2 weeks. She keeps inviting me to go to these concerts with them that are extremely far away from where I live. Every time i call to ask her to hangout shes on her way to a concert with him. I told her a few times I'm not really interested in being the 3rd wheel, somewhere 2hrs away from my house, with some guy I have never met. (She knows I dont like the bands they see too, I've never gone to a concert like that with her its never been an issue) she always says it's ok & she understands.

I told her last time we spoke that I missed her & wanted to hang out soon, just the 2 of us. Since then I've texted her a few times, wished her a happy Thanksgiving, and no response. I called her multiple times over a week & a half with no response.

Idk what I did but shes my best/only friend & I'm pretty heartbroken.