So true!!! The best strategy is to block them but sometimes that takes growth and time. If they do hoover you, and you give them the time of day, sit back, listen to what they say and pay close attention. In between of all the apologies, the promises etc., they will ALWAYS slip up and say something abusive, condescending, threatening etc. etc. They can't help themselves. They are incapable of caring about you! They only come back btw, after they've made several attempts to replace you. Make no mistake, they don't care about you, it means that you had no boundaries and they cannot tolerate healthy people.