Oh, he got used to the idea. You didn't hear him say a peep about it after 2 May... ;-)
I meant WWI. He used that as a key part of the Nazi campaign, railing against the “November Criminals” who “stabbed Germany in the back.”
If you ever get the chance, read the transcript of his debate with Otto Wels during the discussion on passing “The Enabling Act.” You can see why Hitler got what he wanted.