Well, he had of course lived in America since, like, 1913 or thereabouts. *is too lazy to look it up at the moment* I don't actually know whether things came out at the same time or what, but I'm pretty sure he would've have had a different publisher in England and perhaps they had a look at that chapter and said, "What ho! Is it just us, or are Bertie and Jeeves proclaiming their love in this last bit? Tut! Can't have that!" Or, alternatively, Plum could've mailed off the English manuscript first and then had another look at the thing, and said, "Blast it, I really need to resolve things and make sure people know that Tuppy and Angela are set to get married now and whatnot." Except that it seems unlikely he'd have forgotten the basic pattern of every single previous novel's end and all. I don't know, it's just rather odd. And vexing, since I've been collecting those lovely Overlook editions and they've only got Much Obliged. Ah well.