It's all part of the mlc script. Yep, they sure do say that stuff. In their minds, they left the marriage (emotionally) 18-24 months prior to dropping the bomb. Therefore, they think that once they've announced their intentions, that they can go off and date and do whatever else they want in a new relationship. However, they don't stop to think that they are committing adultery. They don't stop to think that adultery is still on the table until the ink is dry on the divorce decree.
Yes, they want to move on w/their lives and where do they go? They are on the wheel, i.e., running and running and the wheel continues to turn going absolutely nowhere.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.