I think one of the first “ideas” I had for these comics was to make War Machine and Domino a couple. It’s in the very first installment of All-New, All-Remote Avengers! I believe the most sophisticated my thinking had gotten was that it could be funny to see the perpetually straight-laced Jim Rhodes try to stretch himself to make a relationship with Domino – who justifiably believes that things will always work out for her – work. I didn’t really expect theirs to be a story I got so invested in, and for them to frequently be the center of gravity for the comic.
I think they’ve both helped one another to grow, even if we haven’t seen them explicitly discuss this growth in the panels of the comic. Although, this growth isn’t, I don’t think, in changing so much as it is in recognizing aspects of themselves. Domino has always been inclined to put the work in; her background as an activist proves that. War Machine trusts his teammates, which he learned to do long before he put on a suit of powered armor. But, I think they’ve fostered the development of those traits in one another, and that’s been nice to see.