Sex File: We had great no-strings sex, has commitment killed our spark?

It can be anywhere from six months to two years for the honeymoon period to end.

I am a divorcee and for six months had been having exciting, no-strings sex with a man I met on a dating app. Recently, we decided to become a couple, but while I love his company, the sex has gone off the boil. Is this to do with the act of committing and the assumption we're always now available to each other? How do we get back to our no-strings passion?

There was a telling omission in your letter: the absence of any reference to emotion. You say you love this man's "company" but is that it? Most couples who have been together for only six months are still in a state of such profound limerence that they can barely function.