Dear Pinkduck
I can feel you pain, I am sorry for that.
and I am sorry to tell you that if you husband was really doing that, he is big jerk.
he deprived you from enjoying sex for over a year , and enjoyed watching cheap porn.
if I were you I would convince him to get some therapy
men who are addicted to porn can't easily give up watching it.
if he insists to continue
then this is new addition to your history of bad relationships.
and you can know that by
secretly installing a software to track what does he do online.