<human>: I broke up with my ex GF about 3 months ago - because she did me wrong and she begged me to forgive her but I couldn't get over it so it had to end. She was never very social -a self-professed loner- and since breaking up, people have not hesitated to tell me they didn't like her personality. She said she resented all the time i spent with my bandmates at practices and shows. 

---   

We broke up and tried to be friends with some off/on bullshit for about a month, then I realized I couldn't stand that either. After repeatedly ignoring my request for space and time if we ever wanted to be friends again, She had to be cut out of my life - I blocked her from social media, email, cell phone, even her work phone, because she kept bothering me. My band played a music festival that she attended, i just happened to spot her and some prick she's been fucking who wears plaid cargo shorts. It killed me to see that so I joined a gym. I think i'm on the path of getting my life straightened back out so i can open up my heart again. 

---   

now one of my bandmates is throwing a party, and he says he's inviting her too. he even knows the new plaid cargos prick's name even. i guess they've still been hanging out, getting drinks now and then and shit. Now, if he was just a mutual friend, it'd be fine - i'd just stop hanging with him cuz he didnt care that i feel betrayed by his actions. but he's my bandmate and I have to interact with him very frequently. 

---   

My other bandmates came  to me and said that hes making a dick move. She's been trying to reach out to the others as well - which they realize is bullshit cuz she resented all them when she and I were together. i swear she's mainly doing it to bother me, and I hate to say its working. or maybe she is lonesome...but she needs to find new friends!

Condense the text into a few key points
<bot>: bandmate is still friends with my ex and her new guy and i feel betrayed. can i really expect him to take my side? should i go to the party he invited us both to?