When you claim to love someone you love them in everyway and shape ..
It doesn't matter if they're naked, dressed up, dressed down, t-shirt/jeans, lingerie, messy or tidy.
Now feel free to disagree, it's an opinion forum, and I like free speech.
However, think about this.
You see your spouse wake up every morning and get dressed "up" for work. If they work with members of the opposite sex, you are watching them "dress to impress" for someone else.
That's the real world.
Then your spouse comes home at the end of the day and dresses "down" with you. They get into the old sweatshirt or pajamas with feet and a snuggie. They are done for the day.
They are sending a very clear, even if unintentional, message that you come in second place. The "other people" in their lives rate higher.
That may be OK occasionally, even a couple of times a month. But, long term, is that the message you want to send to the person you love?
Again, there is a wide gap between "Not attractive" and lingerie.
And so there is no doubt, that applies to both people in a relationship.
Also, I don't know the OP. She asked for a Man's opinion and I gave that.