All marriages have the potential to be worth saving, with or without children. Communication does have a way of falling by the wayside in most relationships that are not worked at. There are several things that the couple need to do to establish that a marriage is dead. You need to know the answer to these questions first.
1. Who stopped communicating and why? Have you asked each other this?
2. Was this a love match on both parties from the beginning?
a. If both parties were not equally in love? Who? and why not?
3. How long has the non-communication been going on?
4. Have you spoken to a professional counselor or pastor regarding your situation?
If there are negative answers to any of these questions, before you through away your marriage, FIND SOMEONE that both of you can agree to talk to and seek help.
The greatest tragedy in life, sometimes, is a marriage that fails because the couple DID NOT TRY to make it work TOGETHER! And if there are children they will suffer greatly.
Believe me, they will know if their parents have tried everything, have really done their best, to keep the family not only together, but together in love. And you must communicate to do this! Both of you!