Anyoen struggle with sex preferences with their SO??

Ive always loved rough sex. Don’t get me wrong, i love making love too. Thats what my boyfriend prefers. He feels great. We do have wild sex, but its not as often and its becoming rare. He’s very routine in the way he has sex, but he also is willing to try new things like he surprised me with some sex toys and things like that. We switch it up sometimes. Idk tho sometimes i just want him to leave some bruises on me and fuck me like a little slut every once in awhile. In the past he says he cant do that because he doesnt treat women that way and doesnt see me like that. Hes also had less partners than me even tho hes 9 years older. His dick is big, thats not the issue. Either way i love him and im happy. Our sex is passionate and loving, and sexy. But How can i introduce more rough sex sometimes tho??

Sometimes i want him to go faster and hard the entire time but he gets tired. I think hes demisexual, gets turned on by mental stimulation and emotional connection first.