Hi, Losing someone you love is always hard to bear, I understand why you have asked this question. Your husband lost his mother, though he will recover from the initial shock it may be the case that you can observe a decisive change in him. After all, losing one's mother impacts oneself in countless ways, and people tend to change a bit too. In my advise you should not worry about much about your husband's behavioral changes instead focus on providing unconditional emotional support. I am sure he will be fine as time passes. Good Luck!