Ask your husband to describe his relationship with his best friend. Note any activities that would make you uncomfortable for the two of them to do alone.

Ask your husband to tell you about her background, work, personality and relationship status.

Meet the best friend and get to know her. Try to make friends with her. Demonstrate that you do not feel threatened by her relationship with your husband.

Calmly make your husband aware of any discomfort. Tell him you prefer that he not engage in certain activities, such as drinking alcohol, with his the friend.

Discuss and set limits together. Show your husband that he has a say in the discussion and that you are not trying to control him.

Ask him to include you in their outings occasionally, to limit their time alone together to several hours and never spend a night together.

Communicate often and meaningfully with your husband. Don't give him any reason to resent you or consider being unfaithful.

express admiration, love and gratitude for your husband daily. Make him feel appreciated and loved.

Be open about your own friendships and encourage him to discuss his with you. Show him that he can trust you. Remind him that you are a team and that your marriage is your first priority.

Send your husband off to outings with his best friend without negative feelings. Don't press him for an exact time of return.

Don't call or text your husband during their meeting unless it is an emergency. Trust that he will come back in a suitable period of time.

Don't grill your husband with questions when he returns. Ask if he had a good time. Remind yourself that you trust your husband and would want him to trust you if the situation were reversed.