Drive Moment - In Dating, What Is The Difference Between Boundaries, And Disinterest?

While 2 people are dating and getting to know each other, it might not be easy to tell the difference between a person trying to set boundaries, versus them being disinterested in you. Why do these two things sometimes seem so similar? Do we sometimes misinterpret a someone's healthy boundaries, as them not liking us? Can our own insecurities or impatience cause us to walk away from potential partners too quickly?