AITAH for not unfollowing a female friend after my girlfriend asked me to?

so my girlfriend and i have been on and off since around november last year, we broke up for around a month in early january and my birthday was in late january, my friend which decided to post me on my birthday as her boyfriend as a joke, i evem clarified on the next story it was a joke, fast forward to now me and my girlfriend are back together and i see that she follows her ex who she has told me has talked bad abt me, so i asked her why she followed him and told her that she shouldn’t follow her ex, to which then she started saying that she wants me to unfollow my friend because she doesn’t like her, i explained that shes a friend ive had since i was a freshman and that i wasn’t gonna cut her out but i would meet im the middle with her on whatever she decides would be enough, to which she said theres no meeting in the middle and now shes been suuuuper dry with me, so am i in the wrong?