Sorry - I'm on my phone so these thoughts will be brief.
1) validation is an every day life skill. It isn't an approach to W for the short term.
2) let's say that objectively her feeling is wrong an you are not an ogre. So what? So you think YOU are going to convince her otherwise? And even if you do, the act of convincing her probably results in negative feelings anyway. You don't have to agree, but I find that trying to convince someone that they're feelings are wrong with your words is a fools errand.
3) I've also never found that using articles to persuade someone to have more sex is a good way to have more sex. Not saying that once a month is a healthy lifestyle. I just don't think the "this says you should do it even if you don't want to" approach is good either. Not sure the best method though. Someone smarter than me on here can probably help better.