Today's Blind Items - The Riddle

I am a hospice nurse by profession, aligned with a rockstar by an illicit connection and the one and only for his affections.  Unrelated to the one who sings and strums, my duties called for care of his mum while he hammered away on my drum. Not the show, but still a fight, who am I, can you make it right?  I know his kids and wife, but he is mine, heart and soul, and now for life.  For his now deceased mama, in times of need, I am the baby's mama—quite the mystery, indeed. What happens when emotions stir, in the midst of worry and care, His family sick with dread, while clandestine affairs lay bare?