Satan couldn’t care less about hurting your feelings, or your finances, or your health. But he does care about trying to get you sin. If he can, he would like you to be in hell for eternity with him. But if he can’t get that, then he will settle for second best—getting you to sin.
Even though hurt and betrayal are to be expected in this life on earth, our hearts and emotions rebel against it. Our mind may tell us that we should expect it, but our heart continues to yearn for perfection with Jesus, where there is no pain or tears. That is the contradiction that we live with. We can live completely according to Scripture, but that will not protect us from being betrayed. And sometimes by those closest to us.