Unanswered questions
So Bev leaves Tom and eventually marries Ben. Didn't Tom fight against the divorce? Wouldn't he chase after her to get her back? It would've been very acrimonious to try to settle the dispute, that's for sure.
How did the surviving Losers explain Eddie's disappearance to Myra? Did Eddie explain everything to her before he left? What will she think, knowing that the remains of her husband are buried beneath tons of rock beneath a sewer system? I don't think it will help her mental state, it might drive her insane with grief.