He cheated

So my bf that I posted ab last time , we ended up trying to have sex and it hurt rlly bad . But he asked to do it a lot after and I just found out today that he cheated on me and it hurt me so bad I cried for 6 hours . I talked to him in person and I’m so broken idk how to feel . I’m always with him and talking to him and it feels weird not being able to text him . I talked to the girl that he cheated on me with and she said that he told her he didn’t have a girlfriend and when she asked him who was in his bio he said it was his dead sister . And that upset me so much bc that’s so fucked up & im so broken rn I can barely think . I rlly trusted him and he always told me he would never do anything to hurt me bc I was too nice.