They're still-born again christians Lira, think of the contribution they've made to society of the course of history so far you can leverage off for ideas and payback; fear, crippling levels of self guilt, spiritual self loathing and homicide. Oh and badly behaved, confused young ladies from catholic schools (but I guess we can give them that one)
Taking a leaf out of my own book of being a terrible human being, I'd get drunk and hit them first with the crippling guilt of 'how would you like it if it was you?' followed up by the second barrel of 'he's probably looking down at you with god and thinking you're a complete arsehole'
Any repercussions later on that become outright hostile you can simply wave away with "I was drunk, but I miss him so much", say sorry, cry a lot and make them feel even guiltier.