Some people aren't loyal to you, they are loyal to their need of you. Once their need changes, so does their loyalty.
You deserve to have people in your life who appreciate and accept you for all that you are. As soon as someone tries to change you, leave and never look back.
Bad things happen so you can see who is there for you at the end of the day. Once you realize who really is, that's all that really matters.
How honest are you? Do you tell the truth even if it doesn't benefit you? The real test to your answer is time. Truth trumps every time. Pretty soon your character begins to take shape and over time you are either known for telling the truth or being a liar. Your heavenly Father takes pleasure when you are honest and you bring glory to His name when you set an example.