Did you read the OP? This is hardly what he’s asking for. He’s asking for a little clarity, so that he knows when would be a good time to initiate sex. Turn your own argument around for a second and think of it from the perspective of Drastic’s second scenario above. Say Sauron initiates sex whenever the mood strikes him. One of two situations will result. Either he’ll get rejected a lot, or his SO will submit to his attentions, but will become increasingly annoyed because he’s now initiating sex too much. How is this a better situation? How does this improve anything for either person?
Geobabe said it best earlier. Guys can’t read women’s minds, any more than women can read guy’s minds. If a woman is in the mood for sex, it’s up to her to communicate that in some way. The issue is not sex, it’s comunication – she was communicating poorly and the message was not getting through. There are other, better ways for her to communicate her desires to him, and none of them involve standing at a man’s elbow and yelling at him.
Unless that’s your thing, of course.
The point is, my wife and I have found that this sort of thing can be fun. If my wife is busy and I want some attention, I might walk out into the living room starkers and tell her goodnight. It’s a bit of risk of rejection on my part,but it generally has the desired effect. Similarly, she has lots of fun ways to let me know what she wants, some without ever having to say a word.
This isn’t about expressing annoyance with your mate – I’d say it’s about communicating more clearly, and maybe even having some fun with it. What’s wrong with that?
Again, re-read the OP. He doesn’t have a problem with her using her toy, and he’s even enjoyed helping her with it.
He’d rather she communicated with him beforehand than complaining about it afterwards, using the vibrator like a weapon rather than something that gives pleasure (there’s an image!). Honestly, the thing with the vibrator strikes me as petty on her part. Did she use it just to throw the fact that she used it in his face? Perhaps if her “hints” weren’t too obscure to be understood, she wouldn’t have to do that… or maybe she would. But why use it against him like that? That’s just mean-spirited, really.