The fact that he doesn't care for your period doesn't change your anatomy. And without drastic physical changes there is nothing either of you can do about it. He can either realize this and adjust his attitude or your requirements or have a bad attitude for several days a month. He could also look at the bright side...it's only for a dew days. Look at all the other time both of you have to enjoy the lifestyle uninterrupted. In other words.....he can just get over it!