I (15M) sent stuff to a guy (15M) after my gf (15F) took a break with me, how can I keep going after that ?

I had whole fight with my gf and she said that we should take a break and that she would be ready to give me a second chance. I always was curious so I decided to talk with guy I know likes guys and I told him my gf broke up with me and we started sending spicy things. Including a full pic of « it ». I don’t know what to do, I love my ex gf and I want to get back with her but after what happened I don’t know if I can keep going, what did I do, I ruined my life, I don’t even know if I like women or men. I’m scared i will never we the same, help me! I feel like I betrayed her even tho she left me. What would you do?