I'm loosing my feelings

My bf is really sick rn and we've been together for 2 years and I'm loosing feelings for him bc he doesn't act like a man like a equal parent I dk like I really cared about him and loved him a lot but over time he texts me only 1text a day and calls only wn he needs a ride and I started to talk to a new guy and I stated to catch feelings for him , and I bad I bk what to do please help me tell me your opinion