A man with trust issues usually has it hard to open up in a relationship, for fear of getting divorced. There have a few reasons why a person will refuse to support someone they claim to care about. In the context of relationships, one of them could be a lack of trust. Trust is a strong force in relationships, and at the same time, so very fragile. While most people are wary about who they trust, you should never have to make sacrifices to fight for it. A little harmless someone can be fun in a relationship, but it becomes problematic when one person has out of their way to stir up envy in their partner.