A Matter-of-Fact Evening

I've been a mommy to my partner for some time now. He's in his early twenties, and we find this dynamic quite fulfilling on many levels. Tonight was different though; I noticed something peculiar during our session that left me questioning the nature of what we're doing. My approach is usually clinical, setting boundaries, enforcing rules, and guiding him through a sort of adult age-play. However, tonight there seemed to be an undertone of unease beneath his usual eagerness. He complied but with less enthusiasm than I'm accustomed to seeing. This had me thinking: am I pushing too hard? Is this dynamic sustainable or healthy for us in the long run? I find myself wondering if others experience similar challenges and, if so, how they navigate them. Would it be wise to dial back some of the stricter aspects of our arrangement, or is my approach just fine as it stands? Your thoughts and experiences would be greatly appreciated.