I think his enthusiasm rose when it became clear that parliament opposition was defining what government and in particular he as MP had to do against it's, and his will. When government isn't in control it is an unacceptable situation, a rump parliament as it was described yesterday. And when some idiots have passed the fixed term act and one can't even get a chance to reset parliament because one needs an opposition, that finds itself in control of proceedings as required by them, to vote for an election, then there's not even a way out.
As for what it all means, difficult to say. Depends on which of Boris' goals become viable, and whether the opposition stay trying to govern from the opposition benches, or call it a day and take it to the people as should have already occurred. I suspect the latter unlikely while they still have hopes of denying the people delivery of their democratic decision.