But I am not sure how much "mystery" would have been obtained since she knew I was out of a job. I am not sure that it would have been good mystery keeping her thinking I am an unemployed bum.
You totally missed the point. The mystery is not her thinking you are umemployed, the mystery is when she finds out (without you telling her) that you did something completely on your own.
What did she say when you told her?
Everybody hurts. It's part of life. Don't miss the good stuff.