Carrie and Mr. Snow have a "conventional" marriage, comfy, secure, and if it hints at something less-than-romantic, that's fine too. But it isn't "loveless" or "cold." It just "average" and "ordinary" in the world of conventional marriages.
Julie and Billy's marriage is full of passion, drama, instability, heated emotions, and plenty of "excitement," and look where it got them.
Food for thought for "romantics" in any era, and YES, this piece deserves to be over-analyzed and over-discussed. It's one of the best ever written for musical theatre, and it's full of "grey areas," not neat and tidy "black and white" truths or characters.
You'd be hard to top it today, or any day for that matter.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22