AITAH for telling my wife she smells bad?

Yesterday I came home from work and my wife greeted me in the usual manner. While I was hugging her I noticed she smelled pretty bad of BO—no biggie, I know she was home with the baby all day and probably gardening outside.

Later in the evening I offer to make her a bath and she jokingly asks “why, are you saying I stink?” I honestly offered to do it just to be nice because I knew she had a long day and likes baths, but she did smell bad, so I kinda laughed and said “well...”

Then she gets mad at me and says a husband isn’t supposed to say his wife stinks, and she’s been sore with me about it ever since.

I find this a little hypocritical. She’s never had a problem telling me when my farts stink, when I have morning breath, or when I don’t wipe well enough, so why do I have to walk on eggshells for her over this? Am I crazy, or is this an unfair double standard?