((((Torani))))
I wish that I had some helpful words of advice for you.
How long have you been with your bf? Has this porn-usage increased over time, or been level throughout your relationship? Do you have children together? (It sounds like something is holding you there, despite your misery..) Are you two on the same schedule for work and sleep, or is he later & spending his down-time on the computer while you're sleeping?

I hope that some of the Q's people have asked, and remarks that most people made help you work through this big challenge. Very best wishes to you!!