There are many aspects of our everyday interaction with people closest to us that can go haywire.
We can all develop interpersonal relationship issues around things like sex, money, or fighting about who does more than the other. We can have conflict issues with a friend because we don't see eye to eye or they've wounded us in some way. We can have issues with our partner or spouse who doesn't seem to take the relationship quite as seriously as we do or put enough effort into making it work.
However, perhaps one of the biggest issues for many relationships and the cause of their demise is the result of a problem with trust. In fact, some of the situations mentioned above can be the result of trust issues within the relationship.
Relationship problems come in all sizes and shapes but in order to have a good relationship, it can't exist without trust.