I also like the idea of going in and just listening, and telling yourself you will not make any decisions or agree to anything at this point, and that's what you can relay to him if he asks you what you think or if you agree with xyz ("I'll need to think about what you've suggested and get back to you," for example). That way you can really focus on listening to what he is saying and remember it for later, rather than thinking about what you will say in return or how you will lob it back (which will result in less listening = less likely to remember what he said = more likely to misconstrue or assume later on).
Me:30 H:29, no kids T:12, M:4 (when D was final) 12/13: "Don't think I want to be M anymore" 6/14: Separated (I move) 1/15: H filed for D 5/15: D final