To be honest, if they were both a wreck I wouldn't even be thinking about it... I can imagine if you're hurting you wouldn't give a crap about your furniture, or want to talk about it.
But they're both doing quite well considering, they're on good talking terms, and seem comfortable with their decision to split. We are quite close with him, he is DH's cousin and their DD is our god daughter.

We are seeing him next week, he will probably end up telling us their plans for everything anyway. If he mentions the furniture, and a need to get rid of, I might tell him I'm interested. I don't want to force myself on them, or make them feel pressured to make a decision.