It is possible he mellowed but his main drive in life is TO GET! Right now he needs to be taken care of. My NPD father has mellowed significantly and he recently surprised me for my birthday by showing up with a cake driving hours from his home. Guess what? he is having marital difficulties and is starting to feel very alone. I am just there to fill in the empty spaces in his life, not that he is really interested in me as a person. If you need some companionship, go for it but don't expect too much and be ready to leave if he gets nasty. These folks are never wrong therefore will not apologize