Should I not talk to him?

Earlier I used to meet this guy and we were dating for a bit. Shortly after he went through a major life changing event which completely affected him emotionally and physically. He is no recovering and had mentioned he needs to focus on himself since that is his priority. So we stopped seeing eachother. I do message him with positive messages and just checking in. Though he doesn’t response much or at all. Well after not replying for a while I told him if he doesn’t want me to message him or like it just let me know and I won’t anymore. All he did was apologize and say he is very stressed and anxious at the moment. He didn’t specificy the reason. Does he want me to leave him be?
Should I not talk to him?
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