Complex sentence: Inuyasha changed his mind, and instead, wanted to use the Shikon Jewel to become a human so that he could live with her, however, Naraku manipulated the both of them into believing they had been betrayed by one another.
Split into simpler sentences: Inuyasha changed his mind, and instead, wanted to use the Shikon Jewel to become a human so that he could live with her. However, Naraku manipulated the both of them into believing they had been betrayed by one another.