YMAC: “My Husband Wants Me To Have sex With Other Men, He Says It Turns Him On”

I’ve repeatedly told him I don’t want to have sex with anyone else but he tells me I’m the luckiest wife alive as no other husband would encourage his wife to have sex with other men.
We were both in our late twenties when we married 15 years ago. We have always had a very active sex life but he’s become increasingly hard to please. I had no problem with him watching Porn or dressing up for him, but then he started talking about having a threesome with another woman to turn him on.
I thought he meant it just as a fantasy – something to talk about, not do – but he got the impression I was willing to hire a female escort and have sex with her as a turn-on for him. When I didn’t he got angry, and aggressive and made my life hell for weeks afterwards.

please what should i do....i need your advice on this one.