Sometimes it's better to move on, than to hold on to a person who doesn't understand who you truly are. Unfortunately there will be times where your absence will teach you what your presence cannot. You need to stop breaking your own heart in trying to make a relationship work that clearly isn't meant to work to begin with. You can't force someone to genuinely care about you. You can't force someone to be faithful to you. You can't force someone to be the person you need them to be.