Well, I tried to talk of my mother with people of the family that I felt close, but it didn't work well at all, because, even if conflicts with parents are the most common event on earth, there's a sort of tabu around it that compells others to always speak not too sincere for the sake of reconciliation. They all get damn worried when you talk bad of your mother! so the general feeling is that they also don't listen to you after all, they just get too nervous, they don't want to enter some family telenovela with conflicts and declarations and taking parts of this and that. Unless your parents abuse you physically, and even then, they will want to avoid the boiling potato the most possible. At the end you find yourself in the unconfortable role of the only freak around. So what I think is forget it.
Someone told you in a post to be considerate and go to funerals and remember birthdays, and that's a way that works. Another way that is more my style is become personal with the ones in the family that you like. A cousin of mine invited me once to the seaside with her and her two sons, it was just a week-end, but we were me and her and we've been talking together about everything in those few days, it was so beautiful, she told me her secrets while I was combing her hair, I told her mine while watching the kids playing in the ocean.
Then I met Erik and it was such a tornado, I left everything for him, my house, my country, my friends, my things, and that friendship with Cristina didn't have the chance to grow further, and my family is very far in my thoughts now. But that could have been a start, if my destiny had not carried me here.