Re: Advice on dating during separation
I've always felt that it's not really the ex or about to be ex's business if you're dating someone new. So my rule has always been that I don't volunteer the info. If he ever asked, I would tell my ex that I was in a relationship, but even that would be limited specifically to answering the question of whether or not I am. Anything beyond that, even if he asked, I would tell him is none of his business. The only thing I would volunteer or give him more info on is when the decision to marry has been made.
If you did want to volunteer the info, I don't think there's any time frame on when it should be done by. It's up to you to decide if/when you want him to know.