You should be supportive of your wife. As a husband, you should be slow to anger when it comes to your wife.
You should behave like YOU, but do be loving and charmingA wife's dead husband is her "late husband
It depends on the kind of woman she is, if it is a stuborn wife that has her own children it is most probable that she does not want interferance but if she is kind and does not seem to mind then no
By respecting and cherishing his wife.
Confront the husband first, then talk to the wife if the husband doesn't stop.
A husband should love his daughter just as much as his wife. After all his daughter was made from his wife. That goes with sons too.
If your husband's ex-wife is crazy, it may be best to keep your distance. Your husband should deal with her or cut off all contact if there is not a reason for communication.
If a husband's wife is a good and loyal person and makes a good home for her husband and any children they may have and the husband's parents are not good to her then the husband should always back his wife and it is up to him to have a private conversation with his parents that either they respect his wife or they will not be welcome in the home. However, if the wife is neglecting the husband's parents; being rude to them for no reason then it is still up to the husband to have a talk with his wife and to respect his parents.
He should be its father and rise him.
It is not a contest as to whom pays for the damage of a wedding ring. If it is the wife's wedding ring then the husband should perhaps surprise her by buying her another and if it is the husband's wedding band then the wife can do the same thing for him.
There is no specific word for the husband of your wife's sister. If you need a phrase, call him your "sister-in-law's husband."
If the wife refuses to make the car payment, then it should be up to the husband to pay for it. After all, he is the one driving it. If the husband won't make the payment, the wife should take the car back. That's only reasonable. The husband shouldn't expect the wife to pay for him.. He's a grown man.