Can't stop obsessing. Should I block him?

I was dating someone for two months, we were exclusive and I felt strongly for him. We moved fast and when it ended (he claimed I didn’t trust him but I found out he was on dating apps) I was devastated. I wanted to stay together. He wanted a “break” and “space” … we all know what that means. He mentioned during our relationship that he is in contact with his exes but nothing like he and I were, but I noticed none of his exes follow him on social media, though he follows them. He also said his ex-wife couldn’t leave the house fast enough, which was odd. After a few weeks, I removed him from my instagram but occasionally he or I would text something benign like an inside joke we thought of or a pic of a candy we liked. Nothing serious. One day after this I asked him “how are you?” and he ignored me for a full week and never replied. Yesterday he texted me a bunch, bringing up restaurants we went to when we were together and other memories. I sent the final text of that night and he didn’t reply. I thought nothing of it as we’d not been texting a lot anymore. To be honest, yesterday with our communication and memories I really began to miss him. I felt like I wanted to see him and hang out again. I do not know if he did that on purpose or what. Today I texted him one quick picture of this candy I suggested he try (our thing is trying new candies) and he saw the pic and ignored me. So this is two ignored texts after what I thought was communication building back up. I feel embarrassed and even ashamed for texting and getting my hopes up. I think because he called it a break and not a break up, I still had hope. Now I feel so stupid.

Deep down in my heart, I cannot trust him. He devastated me with the breakup which was over nothing and was his doing. He ignores my texts and never once asked how I have been. He left my life quickly and continues to pop back up for a few hours. It is hard to move on. I’ve had dates with other men, but I keep coming back to this guy. I finally got some self respect and blocked him today. Should I keep him blocked or is it too harsh? I do still have feelings for him, but I don’t feel he is a safe person to trust with my emotions.