It’s been two weeks since I’ve texted him back after he sent me a text I thought was rude. Should I reply to this last message. What should I say?

This guy and I have known each other for over 10 years and we had quite a dating history. We’ve always kept in touch and currently I work in a different country, but when I went back home I texted him and asked him to hang out. He was a little cold and I know he wasn’t happy with me because I haven’t texted him for 2 days. Last text he sent me said “I don't know what else there is to clear up. Things have been off with us for the longest time now and I'm just tired of whatever it is we're doing. You're clearly busy with everything you got going on and I'm done talking at this point.” I haven’t opened his text and it’s been two weeks. Should I leave it or reply to him? I moved to a new country and started working as a doctor so I am a little busy so my texting hasn’t been the most consistent but he takes quite some time to message as well. I’ve always cared about him and I thought it sort of rude to say it the way he did. I really tried to make our relationship work for a long time because I’ve always wanted us to be together but I don’t know if I should just say something back to this or not regardless of how I feel.

It’s been two weeks since I’ve texted him back after he sent me a text I thought was rude. Should I reply to this last message. What should I say?
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