Dear Friend, she needs a professional counselling. Something is bothering her mind and reflecting as mentioned behaviors. She may be streeed or having depression about some past incidents or unhappy marriage life. Better that she opens up her feelings and emotions to a neutral person like psychology counselor as she may hesitate to talk to friends or family about certain problems.
Next Steps
Convenice her for a counseling session.
Health Tips
If she is still not ready, you continue your moral support to her..