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Your husband is not happy with your son, which is leading to adjustment problem between him and your son. As a mother, you can discuss about difficulties faced by your son, with your husband.
Try to find out problem which is leading to adjustment problems, like not getting job is one of the problem. After findings start working on solutions of problems and involve your husband actively in problem solving.
may also lead to irritable behavior, in that expert like psychiatrist
help may be needed.
Wish you Good Health and all the best.
Dr. Ashish Mittal