...but I do not believe in use of sex as a control device.
While it might be commendable that you would not use sex as a control device, your belief in it is irrelevant bacause sex can and IS used as a control device. It's like saying you don't believe in gravity or the number 42.
There is no "duty" in sexual intimacy (that is another word for "expectation"). There is a general duty clause in the civil law that expects sexual fidelity, but not sexual duty. That there may be a consensus expectation of what minimal level of sex should occur (for whatever reason) is just that...a consensus expectation. That there may be a consequence for failing to meet the expectation and that the consequemce could be seen as "justified" is wholly different.
So, for example, tomorrow marks the 13th year since the last time I had any sexualy intimacy. The fact that you don't believe in it does not make it "go away."
The Captain
Last sex: 04/06/1997 Last attempt: 11/11/1997 W Issues "No Means No" Declaration: 11/11/1997 W chooses to terminate sex 05/1998 I gained 60, then lost 85 pounds. Start running again (marathons)