My question involves a marriage in the state of: Missouri

I got married July 30th and soon found out things were not on the up and up-
I had to call 911 within the first month- (told them it wasn't and emergency, but what to do bc he was acting crazy) It became clear things were not good. We have been separated since Sept 9 -- I am in the process of getting a divorce (calling lawyers/getting advice) But He finally just admitted he just wants a visa And has offered to make me a deal if I stay married to him.

Can I get this marriage annulled? I really thought he was a good guy and we were going to have a good life.

(I never signed any of the immigration papers to keep him legal; his visa expires nov 30 - he is from syria)