You are totally right, the enemy always tries to make SS couples fight, break up, create confusion, hate, make at least one of them not sure about the relationship. As a result the two partners waste time and energy on this, they get hurt etc. instead of focusing to make their relationship stronger and do more work for Satan.
The person who has a stable mind and meditates daily, is closed towards enemy influence and confusion.
Also, keep an eye on the celebration days the enemy has. The enemy is charging more energy these days, thus these days you need to double your protection and cleaning and meditate and everything spiritual.
Cleaning and protection as much as you feel you need to. If you feel you need it once per day, okay, if you feel you need it five times per day then do it for five times. Not all days are the same.
You two need to communicate and be open to each other. If you are open to each other and trust each other then you create a stronger bond. Do rituals often, together or alone. Ask any Deamon you feel close to, to bless and protect your relationship.