You may be thinking about a lot of reasons why you shouldn't trust someone who is newer in your life. These might include fears that this person is using you, their charisma is fooling you, or they're just trying to make a good impression for some reason. You may even be questioning your own judgment, dear Cancer, and telling yourself that you can't rely on the good vibes you're picking up. Let that go. Your sensitive heart is afraid to be hurt, but without taking a risk your heart can never be filled with the love that is possible with this new relationship, whether in friendship or romance. Take a chance.