Jealousy is a sense of uneasiness or anxiety stemming from fear of preference being given to another, or fear of loss of position or affection.
Actually, you can’t handle jealousy. You can, however, confirm your love by acts of attention and affection and by words of admiration and appreciation. But only God can resolve jealousy in a spouse.
You can participate with Him by consistently walking in love toward your spouse. Ask the Lord to help you walk in love according to 1 Corinthians 13:
Love endures long and is patient and kind; love never is envious nor boils over with jealousy, is not boastful or vainglorious, does not display itself haughtily. It is not conceited—arrogant and inflated with pride; it is not rude (unmannerly), and does not act unbecomingly. Love (God’s love in us) does not insist on its own rights or its own way, for it is not self-seeking; it is not touchy or fretful or resentful; it takes no account of the evil done to it—it pays no attention to a suffered wrong. It does not rejoice at injustice and unrighteousness, but rejoices when right and truth prevail. Love bears up under anything and everything that comes, is ever ready to believe the best of every person, its hopes are fadeless under all circumstances and it endures everything [without weakening]. Love never fails... (verses 4-8).
Allowing the Spirit of Love to prevail in your own life and praying always for it to prevail for your spouse will open the door of his/her heart to resolve the the issue of jealousy.
Confess the qualities of love laid out in these scriptures over your spouse and thank God daily for revealing and manifesting true love in both your lives. You cannot change your spouse’s heart, but God certainly can!