Get a reality check.
Perhaps you believe you don’t lie to yourself. What we need to check is that, however, our brain often creates a false story about others and tries to make us believe the story.
When someone smiles at you, you might think that person sneers at you. When someone says something out loud (so that you can easily hear), you might think that person yells at you.
Such a false storytelling can destroy someone’s good intent as well as a healthy relationship. Before doubting someone, doubt the story your brain creates.