Amicable split, when to tell about new DP

[Rainydayss]

Very amicable and hoping it stays that way with ex. Been split 4 months
Have recently met someone and it going well, would you/should I tell the ex out of courtesy in case he sees us together?

If you have children so need to communicate then yes. If no kids then no. No need to tell.

I wouldn't tell him, it's no longer his business.

Yes we have children. Won't be introducing new DP in near future so no concerns there

No.

I wouldn't yet, keep it to yourself as long as possible, 4 months is nothing really.

No need to tell him. It's not his business and only will become so if you choose to introduce your partner to your children - if you have any. And clearly there's no need to do that for a year or two.

And look after yourself - if you're fresh out a significant long term relationship be careful about throwing yourself in at the deep-end. There is such a thing as 'on the rebound". To mix my metaphors....

Maybe after 18 months or so or a bit later, if you’re going to introduce your DC but, until then I wouldn’t say anything at the moment