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It is more appear to adjustment problem in current life circumstances. Often adjustment issues solved with time and after solution of problem.
Try to have thought about his problem, your/his family values and possible future complication. This will help you understand his behavior and would reduce your perceived stress
. You can also seek supporting counseling from friend, family member or psychologist
I hope this information has been both informative and helpful for you.
Wish you Good Health.
Dr. Ashish Mittal