My brother and I used to be really close growing up. He got married and then went through a nasty divorce. That changed him. His mood deteriorated, he disengaged from family, started to abuse substances. I've tried to get him help, be supportive, offer olive branches and everything is met with silence or disinterest. I love him and I mourn the relationship that we could have had. But I realize that I'm not responsible for his happiness and that he's the only one that can implement change.