I am an infp and dated an entp for nearly 4 years. He completely manipulated me and was a total psychopath. He was able to rationalize his demoralized behaviors such as watching child porn, sleeping with countless prostitutes, scheming on others to get what he wants, and always pursuing power. Power to abuse that is. I was very much traumatized afterward and cannot imagine a worse human being who is so detached and lack complete empathy. Be very careful when you involve with yourself with an entp. They may seem outgoing and charming but make no mistake - they only care about themselves. They do not go out of their way for a friend unless it's a scheme that will eventually lead to their own benefit. Just thinking about him makes me shudder.