Why Did Girl Randomly Block Me On Facebook?

Anonymous
2-3 years ago I dated a girl for a couple weeks and we had some pretty decent feelings for each other at the time. She broke things off because of religious reasons. I moved on and we've rarely spoken to each other since, but still maintain a lot of mutual friends.

Recently, she unfriended me and blocked me on Facebook. This seems so strange as I didn't do anything that would make her jealous, or cause her grief - as she also blocked me. I rarely post on Facebook too.

Would I be able to get an explanation, or at least some brainstorming on the matter? I'm so confused about what happened haha.
Why Did Girl Randomly Block Me On Facebook?
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