Billie joe has been going through a divorce over the past two years. she is experiencing insomnia, backaches, and indigestion. according to selye, billie joe is most likely in the

Billy joe is most likely in  exhaustion phase
 exhaustion phase Is a part of Stress handling mechanism which could lead to mental break down or physical damage as a response to a certain stressor.
In order to avoid entering this phase. After entering this phase, it is almost impossible to bounce back unless the root of the stressor is elminated.