The Caregiver's Dilemma

I'm in my early twenties, exploring kink with someone who likes being taken care of as if she were younger. We've been building up the dynamic for months through phone calls and texts where I play the caregiver. Recently, we took it further with roleplay videos. After a while, things became more intimate... I feel conflicted because on one hand, it's thrilling to fulfill her needs, but on the other, there’s this nagging doubt about whether what we're doing is healthy or respectful of boundaries. Am I in over my head? It feels wrong somehow, yet I can't seem to stop...