Complex sentence: After his fight with Shigure, he decides to not look to the past for answers to the future and with his loyalty to his human mother and his friends, he leaves his Yoko lifestyle behind, but not for good, as he tells Youmi.
Split into simpler sentences: After his fight with Shigure, he decides to not look to the past for answers, but to the future. With his loyalty to his human mother and his friends, he leaves his Yoko lifestyle behind, though not for good, as he tells Youmi.