Why do you need to announce anything at all about your situation? If someone should ask, you can simply state that we are in the process of separating and leave it at that. The world doesn't need to know your business. The less you tell the world, the fewer questions and comments that you will have about your situation.
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.