Trust the most expensive thing in the world. Make trust as your brick, if you want to build a successful relationship. It takes years to gain trust, but only a matter of seconds to lose it. Trust is very essential to enhance your love. All bonds in a relationship are built on trust, making it the backbone of a relationship. Trust that you love each other. Honesty is must to avoid awkward tensions and arguments in a relationship. It builds trust so don’t try to be perfect, just be honest.