To the person who said I was being unfair - I bolded what is disturbing about the situation. The relationships are one-way - the other person is giving information, true friendship, etc. and the OP is only offering the bare minimum of true friendship and at the moment something displeases him, he withdraws from the relationship.

There are no narcissistic traits that assist you in having healthy relationships. While I don't believe narcissism is "curable" I do think that intense therapy to minimize the damage you do to others is necessary before you can have a rewarding relationship with someone. You first have to learn how to care for other people and WANT to care before you can stop damaging others. I don't think you can even see what your PD does to anyone else at this time.

It seems the relationships are very transactional on the part of the narcissist. Very superficial and only for some sort of gain (attention or something else).