bsf problems

So we’ve been bsfs for like three years and have went through a lot together. she’s always been like my other half. We’ve always kind of been each other’s only “real” friends but we’ve always both been chill w that.

last spring we befriended these two guys and immediately became bsfs w them as well. we hung w them all summer. we were a great group. She started dating one of the boys about six months ago and it was still chill.

However, slowly over time me and her bf just kind of stopped getting along. It’s because ever since they started dating she’s kind of stopped reaching out entirely and when she does it’s always “hey let’s hang tn!” but ofc it’s always a night i’m working late or have already committed to another event. It’s just like super last minute reach outs if that makes sense. and i’ll try to make it work but it rarely does.

I’ve been feeling super lonely these last couple months. me and her bf don’t really get along much (he has openly admitted he doesn’t like me….harsh ik) he’s said some shitty things about me to the other boy in our group. which he has relayed back to me and I will tell my bsf and she’s just like “wow that’s rude” but she never talks to him about it or actually seems sympathetic.

we just got into a fight cause she called me out for being kind of distant w her but idk how to explain that i’ve sort of started associating her w her bf bc they spend every minute together and she doesn’t call him out when he’s a straight up dick to me.

also side note: me and her had this great vacation planned for me to go w her family mexico (i’ve been saving up for monthss) the other day she texted me “so i think im gonna take [bf’s name] instead and my family is gonna pay for it. is that ok? sorry ik it’s last minute” i was literally going to buy my ticket the NEXT DAY.

she used to be super sweet and empathetic but she’s kind of grown into a version of him and it’s just been very hard for me to connect w her. Also the other guy in our friend group has also been super sad bc he missed his bsf too (my bsfs bf)

sorry this was a LOT but does anyone know what I can say to my bsf to maybe explain how im feeling. i wish i could just chatgpt a message to her about my feelings lol.