@sozobe,
Following along.
It seems to me that Georgew is in europe and current partner is in Canada, and Georgew flies back and forth. I understand the long relationship with the child and continuing some contact. (Correct me if I'm confused on this)
I've been divorced for ten years and the break up really happened five years before that. We had spent 20 plus years together, no children, but we were somewhat tied with each other's families, especially me with my niece-by-marriage..
Since there was a sort of long denouement of the relationship, by the time we both made changes, there was no getting-back-together interest. I see ex and his brother and my niece when I go to Los Angeles; we have really good conversations.
That said, I haven't met his wife yet. At first I didn't want to. Now I think it'd be fine, but a different social situation, sort of oddly forced, and in our cases, not really important for any of us.
So, I wonder about Gw's new partner coming over to Europe - would they all meet? That too seems a little forced, but maybe not, with the child involved.
(Funny going on about all this with Georgew not here, but it's an interesting question with, it seems, legitimately different points of view.)