Dear, Baba was against all these types of tricks. Also Wrong use of any Mantra can even make condition worst. and Be confident if your heart is pure, No one can affect you. If Love is true, No Trick can create any trouble in your married life to apart you from your spouse. If you can, read Sai satcharita and Chant Gaytri Mantra. Keep your house clean, there should not be any water lekage, Keep photos of your favourite God's with smiling face.
Trust Sai. Everything will be fine!
om sri sai ram!