Unhealed wounds. So when a person in your life is hurting you it it because they are a spiritual mirror to show you what you need to heal. Most people meaning 95% of the people in our life do not set out to hurt us. Everyone has their unhealed issues. When a person lies, cheats steals, betray you,etc it is because they have their own wounds to heal. People who do not heal can self destruct at any time. If you feel singled out by someone meaning that you feel they are constantly hurting you, it means that the universe is slamming you against that concrete wall to face your wounds.
So when you feel hurt by someone, look at when did the feeling first originate. More than likely it was way before the person that you feel hurt by. Forgive that experience and learn what you need to learn from it. To spin the cycle of being hurt all the time equals stunted spiritual growth which can hinder personal happiness and success with friendships, career, family and romantic relationships. moving on is not always possible. You will keep dating the same type of man/woman until the healing has occurred.
Never have the expectation that someone will come along and love you so much to where they will never hurt you. Those are unrealistic expectations that will lead to further hurt and devastation. The people that we love the most and have the highest expectations from will hurt us the most. Especially if they are a soul mate, do expect to get hurt. It is a soul mates job to heal you not help you to cover up your wounds.