AIO after my exs gf told me to take down my posts about my ex

I (trans, he/him) and my ex was together for a year, was close to two would’ve been in 3 months maybe, it wasn’t long but I truly loved her and she was really amazing and has healed me a lot from the past relationships I’ve had. but she had gone through some mental stuff and asked for a break, for her privacy I can’t say much but I felt extremely neglected because we went from talking every day to I having to talk to her if I wanted a convo and even then it would last maybe two seconds, so I waited a month for her to get stuff together snd even then she wasn’t ready so I decided to end it on terms of my own because I didn’t want to wait more then 1 month for her to figure out things I could’ve easily helped with.. I have a TT and posted some stuff that honestly was very vague and didn’t directly show I was talking about her but her new girlfriend, which mind you..they got together after a week maybe after we broke up?, texted me and told me she was uncomfortable i was posting her girlfriend. I gave them options to block, mute my post, etc etc but I wasn’t gonna delete something I had on my own page, and again I wasn’t being rude, I was just dwelling over some past things I missed, and again I was very vague I was called immature and horrible for not wanting to follow her boundaries, but I texted her later and she didn’t set those.. it was only her new girlfriend that texted me for that…….., anyways, that’s a short ver I can post more context, it will be longer but I can do it if you want more. But can you help me see if I should maybe apologize?? was I immature ? Did I overreact?