They are the only ones that will be with you forever. They will defend you to the depths of the earth. If they won't they are not family. But even if it may seem they are not family they may be inside never turn your back on them. Like Thor he still sticks with Loki even though all he has done. Next time you have the chance go to a family member that you usually don't say this to and say "I love you". This may solve you problem. But never turn your back on them.