Revealing mistake: If you look closely at Billy Flynn in the musical number "All I Care About is Love", right at the end when he takes off the boxers, you can see that he is wearing underwear underneath them.
Revealing mistake: In the final dance sequence of The Cell Block Tango, watch Liz (Pop). When everyone else high-kicks, she only kicks out. (00:30:06)
Answer: Amos wants to reconcile when the trial ends but Roxie walks away. (The end of their marriage is not explained in the stage play, either.) One is led to believe Roxie leaves Amos and goes on to stardom.
JustJudy