This is truly a very sad situation. If you have noticed this and others have too, then she probably is being abused. If you have a good working relationship with her, then just be there if she comes to you. Other than that, she will have to make the decision to leave on her own and I pray she will do it before it gets worse than it already has. As someone who was in an abusive marriage for 13 yrs. and finally got out 3 yrs. ago, there may be factors that she feels is preventing her from leaving. Even though she is the boss, she may have some real issues facing her decision to leave. In these situations, you can seem to have it altogether on the outside, but on the inside, your self-esteem is low, you feel you have no one to talk to or nowhere to go, but there are people who will help whenever the person wants to seek help. That's my 2 cents.