Carpenters Gothic Ending

How did Liz die?
WOW! I think Liz was killed either by Paul. Yes, Paul loved her but I feel he wanted to end her life once that whole affair situation came about. Liz was going to be depressed. Liz is a very complex, dark and depressed character in my eyes. Liz is very unstable and this bad news would probably kill her. So, Paul did it instead.

Ending the book without a period   
I feel that this was done for dramatic affect. Gaddis wants us to make our own prediction of what will happen next. Or maybe give us a clue... Of course Paul gave the same line to Edie that he gave to Liz. Maybe not having a period means his cycle is ever ending. He is going to treat Edie like crap. He is going to act the same way he did with Liz. Paul is going to put Edie down for sure. He isn't the best man to even consider dating. But, Edie deserves it. Why would she have an affair with her friends husband. Maybe that is what the no punctuation is all about.