IMHO .... your money is not HER money .... not at this point, she chose to leave and move in with OM2, let her put her BGPs on and figure it out. If she hurries up and files it will still take time ... time is good for you ... You did not choose this life, this life chose you.
When my W left, she emptied the accounts, so my golden reply whenever she hit me up for $$ was 'Check that Savings account .. last I looked we had $XXXX.XX in there' (knowing she used it for her condo) .... that bought me a few months then she told me there was nothing there so I emailed her the withdrawl that she signed with "Yeah I seen that" After that I only transfered my S's School amounts (half to be precise) into the joint account and I then replied to any requests for funds with "I'm sorry but I am not funding your A nor your single lifestyle"
Thats what I did .. not saying it would work for you ... but I would not feed her cake, her choices have consequences ... she should look for work ... granted when/if the D goes through you might have to pay .. cross that when it comes.