I am currently going through the motions to divorce my husband who lives abroad and 3 months ago started a new a relationship with a new man.
DS is 10 and because his dad lives abroad and visits rarely I have been a single parent for the past 6-8 years doing all the childcare etc.
Since starting this new relationship I have also started a new job which has me travelling at least once a week, which is admittedly bad timing.
I meet with new DP mainly for coffee or a drink when DS is at after school clubs etc, but also one day/evening each weekend. DS is struggling with seeing me less as for the past 10 years he's been pretty much attached to my hip!
I feel it's too soon to tell him as it's still early days, but I also don't want him to think I've been lying to him (I've just been telling him I'm meeting friends for drinks).
I am also worried declaring this relationship could cause problems with my divorce when ExH finds out and don't want to put DS in a difficult position in that respect!
What do I do!!! I'm so confused and just want to do the right thing for him, but can't decide what that is! 
I should say, I have completely fallen hard for new DP and I am in this relationship for the long game, as far as Ivan know I am after 3 months.