Roughly speaking there's no majority in Parliament for any Brexit deal that the EU would take that can also have the support of a majority of Tories (and/or the support of May). In other words you could get support for a "soft Brexit" with some combination of Labour/Tory votes, but that isn't going to be on the table because it lacks support from the majority of the majority.
And it's March 25 and all of this was going to have been sorted by last October.
