I'm new here too and all of my posts seem to still being moderated and taking days to appear.
I don't have too much to add apart from that our situations sounds eerily similar (expect that my H is currently working overseas and we've been married for 12+ years).
When my H first asked for space in January I thought I was giving it to him by only emailling him once a week or so, and keeping all the emails short, happy and newsy. In retrospect I'm not not sure whether I should have gone completely NC or, disregarded his request for space and moved abroad with him (despite him saying at the time he didn't think it was a good idea).
Fast forward to now, I asked him to consider R during a visit in April, he said he'd consider it, went back abroad, I found out his is involved in EA possibly PA, confronted him, told him I still want to R. Got email from him saying he is not willing to work on our relationship, plans on working abroad for forseeable future and thinks it best if we agree to end this chapter of our relationship. I send email back saying I either want to R or will need to start moving on with my life without him and ask him to sign house over to me.
He sends terse reply saying we can discuss any division of assets and possible separation/R in July. Think he only mentioned R to get me to be quiet. Friends/family now suggesting I go to solicitor.
I think the only thing we can both do now is take the advice to go (and stay) completely NC.