After thinking about this, I see that I need to own my preference for the showering and stick to it.
A related question for this, might be: why?
If sometimes, your husband doesnt shower and you still have sex with him, because he doesnt smell bad enough to turn you off at that point... then why is that a "problem"?
To stick to a boundary, when there is no actual "harm" done to you, isnt a boundary any more. It seems more like an attempt to control your husband.
Maybe you might redefine your boundary in that area, to, "Wont have sex with H when he smells bad enough to turn me off".
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle