My husband and were received into the Church this year. Before RCIA last year we committed to starting NFP. It was a tough year with periods of abstinence and all. Recently my husband told me he’s been masturbating regularly during those times, lying to me about it (he told me all this year he rarely gave in to this temptation), and fantasizing about anyone but me.
What to do in this situation? He’s insisting its a private matter, that he confesses it to our priest when he does it, and I shouldn’t be so upset. Is this really a matter between him and God? The reason I ask is that in our former Protestant circles I would have been told this is not such a big sin, a natural response to desire, etc.