First of all...That is a GREAT first page, lovely artwork, facial expressions...absolutely loved it. Made me expect quite a lot from this release, and I'm glad it delivered in the end.
Still, I definitely understand his dilemma. Something about the girl you love not seeming like she's enjoying your making love to her is really painful to a guy. Not just in a sense of pride, but also genuinely wanting the girl to enjoy her time with you as well.
So, I'm definitely glad he found a solution, sort of. It's always really satisfying the girl you love shows you an expression that she will only ever show to you. (Or, well, since it's Hentai, for all us readers to enjoy)
I think it should be common behavior of every woman to jerk her boyfriend/husband off as punishment for him angering her... What a world would this be...
Should become some sort of standardised punishment, I'm sure many men would welcome it.
Problem is, most of them would probably WANT to purposely get...'punished'.