True, but don't discount the potential importance of sex to a adult romantic relationship or your partner.
For some people (like myself), I tend to take a lack of it as a significant indicator that I've done something egregiously wrong and/or that my partner doesn't feel any desire towards me anymore.
And please, if your partner has talked to you about feeling there is a lack of physical intimacy, sex, or desire: "I wouldn't let you fuck me if I didn't want it" is an absolutely soul crushing response to trying to tell someone you don't feel desired because you always have to initiate and they don't touch you during sex without being prompted. It's not meant to be something where one participant just passively "lets" it happen.
If it's not obvious, I have scars on my soul regarding this.