Wow that relationship (with his ex) sounds like kind of a trainwreck.

The only thing I can think of is sometimes I'll keep people and just 'hide' their posts/put them on a limited profile, because I have a weird need to 'be the bigger person' and not let the other party accuse me of being petty. (She deleted my baby sister and my mom off facebook immediately!) etc etc.

This reasoning makes a little less sense written out but if I feel that way other people might too.

As a side note....that last bit is very concerning. I once dated a guy that had a habit of breaking into my email and stuff and I wish I'd realized sooner it wasn't 'cute cause he cared about me so much' it was controlling and toxic.