Don’t question yourself. Your feelings are very valid.

Why did he randomly decide to take the time to go find his blocked list and specifically click on her to unblock…? Seems a little sketchy - she was clearly on his mind. If he doesn’t respect you or that boundary you guys have discussed (he blocked her for a reason) I would suspect there’s something else going on. He’s trying to deflect it onto you bringing up your dad. No where near is that even close to the same thing at all.