Stand up to Manipulators

A person with successful boundaries has to stand up to manipulators. Manipulators are often charming people, but their intent is to produce enough guilt with their accusations and threats that we back off. They say things like, "If you loved me you wouldn't do that", "That's not very Christian", "You are really selfish". What are some of the things manipulators have said to you to get you to back off?