50/50, you deserve 50 of whatever you have

with regarding depositing your check without your consent after you were restricted, that crossed the line. You may talk with the bank first: 1. obtain the evidence if possible; 2. see what they can do to save your some money for now.

If you want a divorce, preparation is very important. Don't try to threaten her, that's useless. Don't let her know what you would do next would also help you in a way