Caught my GF

My whole world is crashing down. LA is on fire. My work is closed. Bills are piling up. Last night I caught my gf in a lie—we were discussing boundaries around social media and how we use it. I asked to see her Snapchat. Then it spiraled into seeing text messages. And then the DMs, many from the entire duration of the first month of us being monogamous and official. She was talking to 3 guys including me, but only see me. She was leading the other 3 on. These were guys she was exchanging nudes with. I feel sick to my stomach. I packed up all our photos and my things and drove them to her house and put them on her porch. I am stunned and sad and angry. I only saw the things I know weren’t deleted yet (Snapchat deletes messages) it certainly appeared there were other messages that were suspect. I am in total shock.