Asking him to stop because everything is over, if he still doesn't want. if he still do it, tell to him that you will capture the texts or emails then broadcast to Facebook, His family, or another social media. Just try to bluff
Ignore it or change your accounts. dont care anymore cause in the first place you already moving away on that place... let go of your worries cause in the end of the day that will be going to stop soon about what he is done things stupid for you.. ;)