Maybe feeling down but gotta keep going I guess

I'm really struggling right now, trying to deal with my own depression whiel living with my husband who is dealing with suicidal thoughts but doesn't want any help for it since he thinks there's no point in getting better. I end up crying every day, wishing things could just get easier. I tried calling 911 to get some support for him, but then he threatens to aim a gun at anyone who comes because of the call, which means they would have to shoot him due to the threat. It's been really hard and I don't know what else to do.