AITA for not accepting my ex boyfriend’s closure?

If you haven’t seen my previous post, I will sum it up. My ex boyfriend hasn’t been particularly respectful to me recently, and while i’ve had a couple of days to process it, i received a message where he wanted to give closure to the situation and offer an apology.

For context, he’s depressed. We broke up in September, and he asked directly to stay friends, it wasnt me. He never communicated to me that me discussing my plans for university upset them, but when i got an offer i texted him excited about it, as im disabled and the possibility of university was always so slim! but then he publicly posted about how i ‘woke him from a nap’ (i wasnt aware he was sleeping - and is it not common to mute your phone when you’re sleeping too?) and that ‘talking to him when school is killing him and he’ll never go to uni is wild’

All i wanted was to celebrate my happiness. I’ve struggled with my disability my entire life, a university offer was huge. Ive also struggled with depression, in fact they helped me through the worst depression of my life. With discussing to my close friend about it, i realised it was likely jealousy but a reaction like that was unjustified. Posting on twitter as if someone who has struggled since the beginning with academics hasnt struggled is low.

I learnt that i was in fact, not the AH in this situation. With that, i confronted him and blocked him everywhere but forgot to block his number.

He sent me an essay-type message explaining the situation and giving an apology. AITA if i dont reply as i intended to cut him off entirely?