I block all my exes on facebook unless we break up on good terms. I recently unblocked my ex fiance...we've been split up like...6 months I think.
I've had a new bf for 3 months and things are good.
But suddenly having his comments pop up everywhere one everything. BAD MOVE. and you have 48 hours until you can block them again.
Even if you FEEL completely healed. Unblocking = bad plan.