Me and my best friend have known each other for nearly 18 years, the great thing about that is we can always say do u remmember when we did this. We've been thru life together, first kisses(not with each other :P), boyfriends, jobs etc, and we discussed it all lol.
Whenever something bad happens the first thing i wanna do is tell her about it. Im lucky coz i know i can trust her, we never really have big fights, just little petty ones which we forget about the next day.