Stay strong BC,
Is your job a live-in position? . . I think that makes the circumstances even creepier for you. Especially a job where you can, and maybe encouraged to drink!
I'd fear the guy could drug and rape someone!
As you think you should have a gun, I'd immediately LEAVE ! Certainly get MACE asap!
If it escalates, it'll be "his word, against your's".. risking a felony conviction, and WORSE!
Take care!