Why did he unblock me on Facebook?

He broke up with me about a year ago and i couldnt handle it so i made a new facebook account to try ntalk to him since he blocked me on his main. Now , a year later, i noticed he unblocked me on my main account but never looked at the msgs i sent him from either of my accounts n hasnt bothered to try n contact me...whats up with that? Is he snooping on my life by checkin out my main facebook?im confused...