Having experienced being cheated on and desperately wanting my ex back, NO CONTACT is really the way to go. Get rid of anything and everything that reminds you of him. If you have a facebook block him. Get rid of his pictures (or hide them). Make it impossible for you to see his face. DO NOT reply to his text. Just ignore him. It will be very hard at first, I won't lie. It is going to be difficult, but right now you are in a "manipulated high," meaning you think you need him/want him because he manipulated that into you. My ex was a master at manipulating me. Once you sober up through no contact you start looking at the whole situation rationally and you soon realize how lucky you are to have made it out. This sobriety won't happen fast but just breathe. Breathe everyday and stick to no contact. Stick to making seeing his face, hearing his voice, or reading his texts impossible. I promise you, you will start to feel better eventually. I know that hearing that doesn't sound likely at the moment, but really just hang on. You may not feel motivated to go out and meet people yet. I wasn't at first, but being around people and meeting decent people helps. It reminds you that there are people in the world who actually have souls and won't destroy your spirit. One day at a time. Really stay attentive to your needs. If you need to cry. CRY! Don't bottle anything up. Consider yourself a survivor. Time to heal.
"The loudest one in the room is the weakest one in the room."
"Teaching should be such that what is offered is perceived as a valuable gift and not as a hard duty."