My husband says no blows jobs are a deal breaker

My husband told me not giving blowjobs is a dealbreaker?

So, first off, I am a foreigner in USA and came here for my graduate school. I met someone and we started dating. He was very sweet in the beginning and very kind to me. He was divorced from his first wife (no kids) apparently because she started sleeping around and cheating on him and wanted an open marriage.

I was raised in a very conservative culture, and stayed virgin until marriage. When we met and started dating, this kind of became the foundation of our relationship; because I was looking for someone who can wait until marriage, and my husband went through a cheating ex wife, he thought I was the right woman, with no body count and won’t cheat him in the future because I was raised conservatively.

Anyways, we got married within 7-8 months of dating, which was quick but with our boundaries, it made sense.

Since marriage, he has been torturing me over the fact that I don’t give him blowjobs. He brings it up over every argument and tells me he will divorce me etc., the problem is that because I was raised so conservatively, I dont have any experience and it’s not even common in marriage in my country, plus i find it disgusting and nauseating.

Yet, he seems to be abusing and bullying me over that constantly, he tells me I am worthless because I can’t blow him etc. I also applied for my greencard based on marriage to US citizen, and still waiting for it, and he tells me that he will cancel it if I don’t suck his dick etc.

I just don’t know what to do at anymore. I didn’t know BJs were a requirement to be married in America. What should I do?