Cheating

Today I just found out my bf of 8 years has been cheating on me. He has been reaching to girls on Reddit for hookups. I wanted to confront him today when he got home from work but I’m so scared to do it because I know if I confront him nothing will be the same again. I live with him and have a dog and a cat. My family live in other state. I don’t have no money to leave. My job is here in San Francisco. I’m so disgusted with him. I can’t even look at him. If your partner cheated on you, how did you confront them?? I need advice.