I need opinions on 2 issues. First some background

I'm married for ~10 yrs. Troubles of various sorts throughout. Early in marriage he ordered, cajoled, wheedled, connived and manipulated me into doing some deviant sexual things that shamed me terribly. After a year, I finally put my foot down and stopped.

At inpatient & outpatient T last year (2011), I told him about how ashamed I was and that I would never do anything like it again. He defended himself (you liked the attention, you got to wear pretty clothes, I only did it so you'd see how beautiful you are) and said that I was just making him out to be a monster to get attention from the therapists.

Now to yesterday.

First he said he had wanted to approach me for sex the night before but didn't want me to feel used.

The he said, "I might have to avail myself of your services every night for the next two weeks as I wean myself off myself and porn"

Then he wrote an email saying he was very excited b/c he'd just received the new sex toy he'd ordered and he couldn't wait for me to get home. [Note, buying the toy didn't bother me]. Lastly, he wrote, want to go to (name of sex club) this weekend?

Issue 1 - Has nothing I said sunk in? I'm not going to do it, but is it ok for him to ask?

Issue 2 - Am I obligated to give him "services" every night just b/c he wants to stop looking at porn? Is this a legitimate way of going about that? He is a sex addict with multiple issues, but tells me that he wants to substitute me for the anonymous women. I just don't think I could do it everynight. Does that make me responsible if he can't quit porn?

Sorry for long post. Very confused with my rights and responsibilities.