I think this is going to be a really obvious blog for people who are reading, but I've been surprised before, so it's worth it to share.
When I work with couples, I tell them that the work they do is broken down into three large themes (too much detail to get into, seriously), all of which are based around the Gottman's work. We spend time on conflict (duh - that's what most people come in for), existential issues (i.e. life roles, dreams, meaning), and friendship.
Seems really simple, right? "Just be friends with your partner!" is what they tell you, "Laugh together!" is what they say. But when you're in the throes of conflict, or when you can't even look at your partner without feeling resentment or rage or exhausting frustration or defeat, then laughing together seems like the absolute furthest thing from what you're capable of.
And, to be honest, that's not the type of thing I would tell you