It's funny because all the snippets and flashbacks we're given paint such a varied picture. In Zhukov's office, she's clearly on edge, but not mean. In the hotel, they're a little smiley and friendly, she's not ready for sex, but clearly they're not angry at each other. They transition right to a civil conversation even after she rejects his advance. In Zhukov's flashbacks, it's clear they're not getting along. In the table conversation with Gregory, it's revealed Elizabeth came to him in tears when pregnant. Paige talks fondly about family games of round robin checkers. Even when you see them together in the pilot, there's a level of comfort in the way they interact that suggests things aren't always icy. He wouldn't come up and kiss her neck if a knife was pulled every time. With all those wildly different snippets, I can only assume things were rocky, but okay at times too.