A person who has let you down in the past will lose his or her credibility - yet that doesn't mean they aren't capable of doing the right thing. If you're facing a dilemma now and wondering if a certain person can be counted on or not, you can look to your past interactions for a clue. If this person has not been reliable, you might be afraid to give your trust again. Even so, someone who is authentically sorry for a past offense might deserve a second chance. Find a way to offer one without risking your own security. There is a way, dear Aquarius.