Do you block them?

What do you think of blocking them after the breakup?

For context, I was broken up with around 2 months ago after a nearly 6 year long relationship. I've gotten over the roughest parts of the breakup, but he's still blocked in my phone. Initially, I couldn't keep him unblocked because just knowing he could text or call me at anytime was extremely stressful. I've tried to work myself up to unblocking him, but whenever I have I feel extremely anxious after.

Should I be working myself towards leaving him unblocked? Or is it ok if he stays blocked indefinitely?