I agree with CO1978 - slow down, take deep breaths and be patient. What's the rush anyways?
I also agree on letting your W lead the agenda. She probably has A LOT to say. Listening, eye contact, validating will be huge. If something is not clear, ASK (but don't interrupt).
Some people also recommend repeating back an important point to confirm that you understand her point and are on the same page. There is a name for this, but I can't remember it now. (The tricky part is that sometimes people get a caught up in the semantics when doing this rather than the issue...I know both my H and I would be guilty of this).
I also suggest not trying to defend yourself - it's good that you would already be expecting maybe some anger from her and that way you can protect your heart...
GOOD LUCK!!!
Me & H: 44 D7, D6, S3 Together: 20y, M: 17y EA: 11/13/10, Sep: 12/23/10 EA becomes PA: Spring 2011 H filed for D: 09/06/12 D Negotiating began 2/15 OW seemingly gone on 3/15 Still negotiating D