Finding evidence that your partner has been unfaithful is only one aspect of trust. It's about having faith that they have your best interests in mind. Everyone is born with a natural tendency to trust people, but as a result of life experiences, you may have grown less trusting as a sort of self-protection. When this happens, it can have negative effects on your relationship. If you're not sure whether your partner trusts you, ask them directly. A lack of trust between partners can be an obstacle to happiness and success in any relationship, so it's important to address it head on. If your partner doesn't feel comfortable sharing their thoughts and feelings with you, then they aren't being honest with you. This isn't to say that they don't love you, but rather that there are things about themselves that they don't want to admit. Growing up in an environment where trust was not given often led me to develop a mistrusting nature. I didn't understand why someone would do something dishonest, so I avoided people who had a history of cheating or lying. This behavior caused me to lose out on many good relationships because I was too afraid to trust people again. Over time, I've come to realize that some people are just bad news. They might seem like nice people at first, but eventually you will see that they're not being honest with you. You cannot predict what someone else will do, but you can control your own actions.