Or, explain how you are feeling and ask your partner to step up to the plate with her.
For him to do more to care
for the dog and have the dog fall more under his responsibilities. AND< perhaps a good dog trainer would be in order. A dog should go to the bathroom outside only and learn manners and if you tell them to sit and stay that they do it. so, I'd get some dog training for your pooch to see if that helps.
My dog is one of the joys of my life.