My favorite part is that Donna is 4 months pregnant and Ronna can tell

Thank you! It's such a small thing, but I like the idea.

I'm not totally sold on the idea that he's been having affairs for years, but I can see how her resentment and complaining might lead him to shut her out and do this.

Yes, my general take on Matt Santos is much more honorable than the man I'm painting here. But I figured if I was going to take a dark look, I might as well go all the way.