Why would he stop responding now?

Anonymous
My ex and I broke up a few months ago because he wasn’t “ready” for something serious as he was in a very long relationship right before we met. I missed him over the summer and sent him a message last month. His first reply was that he’s afraid to break my heart again and we should maybe leave it. Then he said he’s seeing someone casually and he’s not comfortable meeting up right now. But we’ve been texting small talk since then. It was on my mind- some of the hurtful things he said during our breakup though & it was more difficult to keep small talk & pretend that hurtful convo never happened. And so I sent him a voice note saying that it was important for me to see him again and talk in person as it was difficult last time we spoke months earlier. I said I understood he’s not comfortable meeting right now but to please let me know when he is. I reminded him that I cared for him & that its hard to have a bad conversation and then not see each other again. He hasn’t responded. He’s replied to everything since we re-established contact. Why not just say “yes or no” why ignore?
Why would he stop responding now?
5 Opinion