Gaslighters will always try to deny the truth. They become extremely aggressive when someone reveals their true intentions. If you figured out that the individual is a typical gaslighter and is playing with your mind, then watch his reaction when you tell him you know it all about his plans. Usually there are a few reasons why a gaslighter abuses and uses you. He has some sort of benefit from it and using you as a tool to achieve his own goals. Stay alert and remember that denial is also a red flag.