Yes, but you’re not quite right: It’s a bit worse than you describe. She comes back. He settles into his chair and says “Eliza, fetch me my slippers” and off she goes!
The best explaination I’ve ever heard is that A) she cares for him. B) It’s OK for her to come back, and it’s even ok for her to “fetch his slippers” because she’s won. And they both know it.
Look at each of their last songs. She sings the bold, uncompromising “Without You” where she strongly declares that she “can do bloody well without” Higgins. And means it. She can survive without him. She might not want to, but she could, and she would thrive.
He, on the other hand, sings the mawkish, sentimental “I’ve Grown Accustomed To Her Face” where he admits he can’t go on without her.
Also, in the context of the musical, Eliza has only two choices of spouse: Freddy Einsford-Hill (a total simp. Utterly wet. A drip. Too low to kick and too wet to step on. The strong confident Eliza would crush him like the bug he was) or Higgins. (None of the above was not an option in a 1956 musical. Marriage was a must as a rule)
Higgins can stand up to her, but he’ll NEVER be able to crush her, since they both know that she can go on without him, but he can’t go on without her. She “fetches” his slippers as a way of letting him save face. On the other hand, about the 14th time Freddy started singing drivel like “Speak and the world is full of wonder/The heavens thunder/higher than before”, she’d kill him. And who could blame her.
Apparently part of the problem is that Hepburn just wasn’t as good of an Eliza as Andrews was. My parents, who saw it on stage with Harrison/Andrews on their honeymoon, said Julie Andrews was a much stronger Eliza than Hepburn was. And Andrews gives a little knowing…um…smirk(?) grin(?) as she goes off to get his shoes, a nuance that Hepburn misses (IIRC she smiles tenderly at him).
Given that interpretation, I don’t think it’s all that bad of an ending.
Now a BAD ending is the one in Fiorello! where Marie sings about how she’s gonna “marry the very next man/ who asks me…/ And if he likes me/Who cares how frequently he strikes me/I’ll fetch his slippers with my arm in a sling/Just for the privilge of wearing his ring!” :eek:
Or in Carousel, where Billy gets into Heaven because, being an inarticulate (if well-meaning) lout, he slaps his daughter across the face rather than talk to her about her shyness. After being decked, the kid asks her mom “Momma, is it possible for a hit to feel like someone loves you” (or words to that effect) and momma says “Yesl”
Fenris