Hard to answer about every time, but I do like knowing if what I'm doing are things that are bringing pleasure for my wife. Long ago realized that not every time would necessarily result in an orgasm for her (and a few times that's even been true with me).

I do want her to be able to experience pleasure and be 'satisfied' anyway. Strive for fireworks, but sometimes settle for a milk-shake.

I suspect there have been times when maybe either she or I weren't really as in tune with what was happening as the other, and at times like that, I want to still present an image of maybe experiencing a little more pleasure ( or appreciation?) than perhaps what I am actually feeling. Don't think that I am deceiving or even wanting to deceive her in those cases, but I do want her to know how much her effort meant. I think she's done the same and I considered that an act of love, not deception.