Unexpected text from ex

My ex of 7 years blindsided me into a break up almost 8 months and last we spoke was 6 months ago. The relationship wasn’t bad but we were both going through career growth and had to move to different places 2 months before the break up. Which we did at one point in the past and we made it work. We didn’t have crazy fights and he never told me anything was bothering him until he broke up with me citing the workload in our life and the distance which is fair. The problem is that after all that while I was still trying to make sense to things he blocked me then and like 3 months after unfollowed me on instagram. We used WhatsApp occasionally while we were together. I realized when I was going over my documents in my computer that he had some documents with my information from one time I had to borrowed his laptop to submit some things that had a deadline for applications I was partaking in at that time. I message him on WhatsApp since i wasn’t sure if I was still blocked and wanted to see if the message got delivered. It was a straight forward text. Just asking him to delete them and said thanks. I made sure the text had no open questions because I did not want to give the idea that I wanted to talk to him or that I was trying to connect with him. Because honestly I didn’t want to reconnect in any way. He didn’t replied that message for like 2-3 weeks which was expected. But then he randomly message a “how are you”. Didn’t even mentioned the documents. I haven’t replied and I don’t plan to. I am just surprised because it was unexpected. I assume things are not going as well as he expec.