Assalamualaikum and Hi.
A relationship with no trust is like a cell phone with no service.All you can do is playing games.Having someone to trust is one of the greatest tools a person can have in life. The trust between two human beings is one of the most wondrous reactions that two people can easily share. When we trust someone we are basically able to give them as much as love as we want to know that they will only use this love wisely and will never use this love against us.When we deal with people we know we can trust, we know that we have someone that we can confide in with any given secret in our lives and know that i will not ever be leaked. We know that we could give them the shirts off of our back if they needed it and they would give us the shirt off of their back if we needed it.Trust is one of the biggest relationship makers and breakers.With trust, a relationship is able to grow.Without trust, a relationship will crumble.
p/s : may Allah ease.