Thank you very much for all your good advice. I just texted back thanking him for letting me know.
Sotto I think you are spot on on having to work on my reactions when I get updates from him. I'm jealous that he does all those things now when he is showing that he could clearly have done them when we were together. Also it also an issue about how I feel about myself as I take it as I have failed to bring the best out of him when we were together but OW seems to be able to do it. I see it as a failure from my part as a wife! Really need to work on this.
Thank you Peacetoday I know you are right that it's a good thing that he does engage more with the kids. I'm not ready yet to see him physically as I know it will upset me, H knows me very well and how to trigger me. So I want to get to a level where I can face him and not show anything. Until then I'll stay dark but will make the effort to go to the door if we need to converse.
Thank you Job for your advice they are always wise hence I'm glad I post here first before I did anything stupid.
Note for self NEVER EVER again let a weekend with kids with no plans as I guess that is what sent me over the edge. In the end went out to a soft play and met another mum there. Had a great time. Now feeling much better.