I recently found out that my husband has been having sex with a woman for about 8 months. I disclosed this information to my mom when I left and moved back with her. She's been offering advice and she wants me to try to work it out. I'm disgusted with him though, the thought of him makes me nauseous and I don't think I can get over the disrespect. He disrespected me, our kids, our home, and our vows and I don't think I can get over it. Maybe because everything is still fresh but I don't see myself working anything out with him. 

Why do people stay or go back with their significant other after they have cheated?