My partner is no longer sexually active, but doesn’t seem bothered

This has happened because of medication he is taking, but he isn’t doing anything about it even though it affects me greatlyMy partner of five years is no longer sexually active because of medication he has been taking. It has been affecting me greatly, but he doesn’t seem to be bothered. I have asked him to visit a specialist, but he just says he hasn’t had time and will do it in the near future. I feel that I need to move on, but am reluctant to leave what was a fantastic par