Question Summary:
How to deal with an overly suspicious husband?

Question Detail:

 
A partner is suspicious of his wife's character and constantly checks upon her. She on the other hand is innocent and has even sworn upon Quran to clear her position. What is she to do if the partner still does not believe here after Quran oath? 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
 
Sister in Islam,
We acknowledge the difficult predicament you are in. May Allah Ta’aalaa bless your marriage with peace and happiness and fill your life with divine barakah.
A successful marriage is based on open and clear communication, trust and mutual cooperation. It would seem that the reason for this misunderstanding is the lack of communication and trust.
Remember, just as suspicion is a sin, to give reason to suspicion is also a sin.
It is our advice to arrange a face-to-face discussion with your husband and engage in an open and honest conversation to clear up and misunderstandings and remove any suspicion. If you feel that the discussion will end up in an argument, you may ask a senior family member or a local ‘aalim to regulate the discussion.
 
And Allah Ta’āla Knows Best
Muhammad Haris Siddiqui
Student Darul Iftaa
Melbourne, Australia 
Checked and Approved by,
Mufti Ebrahim Desai.