it is the only major question in the sciences that we don’t even know how to ask.
We cannot see what happens in the lower part of the painting, but one might surmise that she has grasped the broom handle, so to speak, and suggested it might be a good idea to “store it in the closet.” The husband certainly has the dopey look of a man who finds himself suddenly, and unexpectedly, broom-handled.
The other theory is more disturbing, and suggests that murder follows this happy domestic scene. Not today; perhaps not tomorrow. But some day, and some day soon. Look at this guy: he’s hammered. Three sheets & a mattress pad to the wind. She put up with him for years, but now she has a new man, and this fellow has given her a new outlook on life. Yes - she can love again. Yes - she can live again. But only if she breaks free from the sodden bastard to whom she pledged eternal troth. So she has stopped complaining about his drinking. In fact, she’s had a complete change of heart - why, she likes him better when he’s drinking. Here’s your Tanqueray, dear - I’ve decided to keep a backup supply in the closet. If you ever run out, there’s an extra bottle here.
He does not realize that she has purchased a brand of cleaning fluid, quite toxic, that’s packaged to look identical to Tanqueray. One day soon he will stagger to the closet, looking to slake his damnable thirst, and he will drink from the bottle of cleaning fluid. They’ll find him on the floor, bottle in hand. A suicide. No one would suspect, and even if they did, what of it? He drank it. They can’t prove she did it, because she didn’t do anything.
She considers the flawless logic of her plan. And she smiles. Soon.