I'm looking for a short science fiction story with the following summary: a man comes back home (either from work or a trip of some nature) with a different personality. He's more attentive to his wife and child's needs, and truly enjoys the world around him. However, the police/investigators believe that her husband may have had his consciousness swapped with some type of alien life form, and they interrogate the woman, asking if she's seen any changes in her husband. Yet, the woman likes the new changes in her husband, and decides to lie to the police and commit herself to the alien. The alien is very grateful, and they basically live happily ever after with the husband's consciousness floating around in space somewhere, I think.
What made this story memorable was that it was flip on alien possession - the wife LIKES the changes to her husband since he was neglectful/abusive in the past. She doesn't miss her old husband's personality in the least. And then, when confronted with the fact that the police could find her husband's consciousness and switch them back, she makes the choice to not give up her "new" husband. She chooses her happiness.
Anyway, I really love this story and I've been looking EVERYWHERE for it but since I don't even know the author's name I'm screwed! If it's a pretty famous story, I'll eat my own foot honestly, haha. But, if anyone can help, I'd be EXTREMELY appreciative!!