Not a bad idea. My friend and his gf broke up and he thinks the reason is because she was more sexual than he was. He is actually very asexual and doesn't enjoy sex that much at all. I think it's because of his meds and I feel kinda bad for him. His gf apparently wanted it a lot and he just didn't have the urge like she did.
I personally never had this problem but if I did, I'd probably be the one who had the higher sex drive than my gf or bf. It would be interesting to see how MTSS does an episode about this.