So, I sent stbx an email saying

My preference /intention is to settle asap via mediation.

Might as well have saved my time because his reply was as follows:

"Is this confirmation that you do not require further information from me to make your decisions regarding settlement?"

I feel even more stuck now.

If i reply any way other than to say I will not require any documentation regarding our assets/liabilities, he will refuse to attend mediation.

If I reply again I feel like I'm just being drawn into an unending argument with him.
If i don't reply, he'll cancel the mediation appointment.

I feel as if I'm being positioned as the one who made it necessary for him to go to court to seek settlement (and therefore the cause of the financial hardship/ruin that will entail).

I know I can't control whether he goes to mediation or not. But is there any benefit in replying to his email?
(I'm thinking maybe of something like:

"I honestly don't know."

Not replying seems evidence of non-cooperation/rudeness, but what on earth can I say?

I feel like he's often put me in these impossible situations in our M - regarding financial matters.