Getting unblocked on Facebook?

[Alexander]

My ex blocked me on facebook a few weeks ago. Since then I've deactivated my account because I can't be bothered with it anymore. Tonight I signed up again to check something on my facebook mail and noticed that I'm not blocked by her anymore. Before I was totally unable to see anything to do with her but now I can see where she has tagged mutual friends in events and pics ect... and if I go to her profile I'm able to see it. She hasn't added me as a friend and I've not requested her, what I'm really asking is has she unblocked me or is it something do with with reactivating my account?