is it worth to block my best friend for this??

so i’ve been going through a transitional time in my life after loosing one of my best friends, breaking up with my boyfriend, and then her moving to boston and my other friend staying in paris. so i went on a co workers birthday trip to vegas and it was a lot of fun. one of my friends who i worked with and went to high school with was there and we drove together. we’ve never been close but always friends. ever since that trip in vegas we’ve been like best friends going out together with guys and talking everyday. however, the last 3 weeks she’s been a complete bitch to me and called me a shitty friend because she asked me go with her to do her returns and i said “that seems boring” and said fuck you to me. i tried to be the bigger person and move on from that cuz i have like no friends rn and also cuz she’s fun to hang with. and for the past 3 weeks or so we haven’t really been talking and when we do it’s fighting. then she texted me 3 days ago saying “your x followed me on insta, why?” and i was like idk probably cuz he wants to see stuff about me cuz we broke up like 4 months ago. i wasn’t even talking to him then she goes and messages him saying “give it a rest” regarding me. that pissed me the fuck off because she didn’t tell me, i found out through someone else, and it’s not her fucking place and also cuz we’ve been fighting so it’s not like she was trying to help me. my x and i are fine like ? i told her how that was way out of line including the way she talks to me and she said she’s not out of line and i couldn’t take the fighting anymore so i blocked her. what do u think ?