To know if his license is suspended or not you have to call DMV. No one here has access to his DMV record. After the SR-22 is filed he can go get his license back. Sometimes SR-22 are needed because you did not fill out the DMV form (in California it is an SR-1 form) within the 10 days the DMV requires. It has nothing to do with who was at fault.

Bottom line is your boyfriend has to call the DMV to see if his license is suspended and to see if the SR-22 is in their computer system. By the way, the insurance company sends the SR-22 to the DMV computer. So, you do not need to get one from the agent or company.

read the rules:

There is a LAW that insurance companies to cover all household members who have a drivers license,

But… Most all insurance companies will require that you call and notify them to either allow a licensed household members to be added to the policy or exclude them. This is because as household members it is assumed they have access to your vehicles and may drive them at any time. These drivers are thus a risk/rating factor to be taken into consideration. Don’t think you can get by and not notify them of household drivers because If they are not notified, they can and do and will cancel the policy.
Many state laws require that you must inform them of licensed drivers dwelling in your household, so that they can add him as a driver to your policy and rate accordingly or exclude him. Excluding anyone from your car insurance would mean that you are not paying extra on your policy to have him/her as a driver and thus they are not extended any coverage by your insurance policy if they were to drive your car and be in an accident, even if it were an emergency situation.
If you have a licensed household member, whether a relative, roommate, etc, the insurer believes that the person will have access to your vehicle and thus is a rating factor that should be on your insurance policy. If the person really is not going to drive the insured vehicle then there should not be an issue with excluding them. Without you signing off on the exclusion the insurance company cannot really believe that a licensed household member may not drive your car.
The perceived risk for non-household members by an insurance company is different and that is why you can normally let a friend that does not live with you borrow your vehicle without adding him or her to your policy.
A friend may occasionally borrow your car and be covered by your insurance because they do not have regular access to your car and thus are not rated as a risk factor on your policy. If you do have someone outside of the household that regularly drives your car then normally an insurance carrier usually would also want this person listed as a driver so they would be properly covered in an accident.