Complex sentence: Eduardo, upon learning about the rape incident, threw away all his feelings and love for Amor and he betrays their relationship, not believing that his brother could have raped her and not listening to Amor's explanation since he thought she was lying.
Split into simpler sentences: Eduardo, upon learning about the rape incident, threw away all his feelings and love for Amor and he betrays their relationship. He did not not believe that his brother could have raped her and did not listen to Amor's explanation since he thought she was lying.