Is it common for non ms partner to b gud househusband but no interest sexually
Absolutely no idea whether it’s common or not. You use the term ‘househusband’ but is your partner a ‘good partner’ in being close, loving, open and sharing. Are you able to have open and intimate discussion?
This is total guesswork and quite possibly garbage but he might ‘feel’ that it’s somehow wrong to want intimacy / sex with someone who is ‘ill’.