I wonder if the perfect chance to tell really exist. If so I think I have missed mine!
Last Friday I had the chance of "telling" my best (girl) friend. I visited her because she needed someone to talk to. We were having an unusual deep conversation about life, work, future... and I thought my time had come when the "marriage and children" issue came up. Then I thought I would be too selfish to start talking about me when she was the one who was desperate to share his feelings, so I uttered a few ambiguous words she didn't pick up and we both moved on to another subject.
I'm not exactly a talkative person when it comes the time of sharing my feelings. I just wouldn't feel comfortable to bring my "issue" up out of nothing, though postponing this indefinitely is certainly not a good prospect. I'll be waiting for the next chance!