Why did my ex tell me he wanted to be friends after not speaking for years, then later not talk to me at all?

Anonymous
My ex and I split up years ago when we were both young. We spent 4 years together, and we truly were In love. Instead of our relationship progressing, he told me he wanted a break for the whole summer, which hurt severely. He ignored me completely. I had my issues with the relationship as well but I never thought of leaving or taking a “break”. Eventually we came back to each other but it left me feeling indifferent. I later told him I wanted a break but I started seeing someone else. Even though I wasn’t seeing him I would text him once a month very lovingly instead of telling him I was dating someone else, it was wrong of me to do. I repented so much. He found out and it was a huge fight between the three of us, I chose to stay with the new guy. We eventually cleared the air and ended peacefully after that. 3 years of dating the new guy, I finally left him because of abuse.
My ex reached out to me once during the relationship with him but I did not respond. so when I finally got out of the relationship, I messaged my ex to apologize for my wrongs. I felt it was needed. He apologized to me as well and asked if we could be in touch. I agreed. He would text me and then eventually invited me over. We had a great time. I mentioned that I loved that we could be friends and he kind of got quite. After that I know I reach out to him a lot but he doesn’t really respond or reach out to me. I kind of feel hurt. He asked me if I was going on a date once which I thought was weird. I had no intentions on being anything more than friends, I truly wanted a friend. I told him I’m supportive of him dating and will never get in the way of that. Did he change his mind because he thought by me reaching out to him so much, I’m making him uncomfortable? Or did he want to be more than friends and was upset I didn’t want to be?
Why did my ex tell me he wanted to be friends after not speaking for years, then later not talk to me at all?
2 Opinion