My husband and I are dual military and we haven't even made 1yrs yet. However, I want to divorce him because he has an anger problem. I don't have any kids at all, while he has 3 from previous marriages. Will I be subjected to a decrease in pay, like back to a single soldiers pay, once the divorce is final or is there a way I can keep getting bah and bas?

No, once you are single again, you are single again, there is no special "divorced pay rate"

To keep getting the additional pay for being married, you have to be married.