Is it the right decision?

I know that this isn't for me to answer, because I'm not the one who has to live with it.

My best friend is getting married. Getting to a girl that he barely knows and one that he thinks will make him happy for the rest of his life.

He just got out of a emotionally draining 3 year relationship in November. I don't want him to hurt anymore, nor be lonely. But at the same time; I can't exactly tell him that he's making the wrong decision -- because it's not my place, nor am I one to make that decision.

I love him and want to be supportive, but it's hard!

ARGH!!