User blog comment:Xilinoc/Ch. 541 - THE BLADE AND ME 2/@comment-5606268-20130612163809/@comment-5398287-20130613045924

Well, despite acting the way he did, Hollow Ichigo did help Ichigo pretty much every time he saw him. When fighting against him, he helped him improve his fighting technique; when taking over his body during his fight with Byakuya, he claimed he needed to save him so he himself wouldn't die, but that was probably just a bluff to cover up how he was saving his life because he's his Zanpakuto; and if you wanna go into the anime filler, when he was fighting against Zangetsu, Hollow Ichigo lent him his power in order to defeat him.