Girls, why do you tell your man he completely satisfies you when he doesn't/didn't?

I get the ruining his ego thing etc. But F him and his ego because if you feel he should have satisfied you and he didn't and worse yet didn't know, I feel like it should be communicated or you will have to be unsatisfied regularly and he will never improve if he didn't know he didn't get you there.

Updates
10 mo
Guys that know this has happened to you, how did you feel you had been lied to knowing full well that she didn't get there
Girls, why do you tell your man he completely satisfies you when he doesn't/didn't?
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