But, I think there is a case to be made for the idea that if he's married to Dinah, she is obligated to treat him as (extended) family. Because it means he's not going to go away quickly, and it means that hurting him would be hurting Dinah.
Obviously, he and Babs would need get to get to know each other a bit better as colleagues, and possibly as friends, before that kind of relationship could really be cemented, but I could see it happening.
And I mean, if Dick and Kory were married and Babs had to work with both of them, I like to think that she would make an effort to find some common ground eventually.