Doesn't it? We make choices everyday, we can choose to stay angry over something, choose what clothes to believe in, choose to be kind. A friendship is not one single choice but multiple that you make along the path of friendship. You choose to confide in this person, to believe in this person to love this person all on your own. To add on, it is very possible for family to abandon and or walk away from each other. It's not uncommon or unheard of.