If after so many years of being a person's friend, being there to listen to them gripe and complain about the problems they are facing in their lives, they still treat you like you're a nobody, express no gratitude whatsoever for listening to them complain like a ungrateful brat and don't really care to see you happy, let alone are interested in what's going on with you, it's time that you stop caring, and start ignoring them, the next time they decide to hit you up, because it's obvious you are a convenience to them and they only hit you up if they have nothing better to do or bored and have a negative attitude, and never in a good mood when you do talk to them. I mean what's the point in them hitting you up if they have such a negative vibe about them? You don't want that rubbing off on you. Let them be, and maybe they will realize how crappy of a friend they were and grow up, and stop being so self absorbed, and start stepping outside of their bubble and show concern for you, and then again maybe not and if not, that's their loss! That's Real Talk, people!