Blood means nothing.... The people that deserve to be in your life are the ones who genuinely want you to be happy, not the ones who try to destroy your happiness because they are miserable with their own lives.
God says, "the reason some people have turned against you & walked away from you w/o reason, has nothing to do with you. it is b/c i have removed them from you life b/c they cannot go where i am talking you next. they will only hinder you in your next level because they have already served their purpose in your life. let them go & keep moving. greater is coming" says the Lord.