Hmmm... several have mentioned being married for many years,but, apparently, none have learned the lesson of approaching said frau and in an obviously concerned voice explain that this recent article (while holding the magazine in one hand) says women are especially prone to (whatever ailment) if they are overweight. Without missing a beat, said husband (or live in) add "... I've spent the better part of my life with you and I would find it really difficult to live without you..." and explain how much pain you would be in if something happened to her.
Never does the subject of how she looks come up, unless, of course she brings it up, in which case the uber husband would state "... I never thought of that, I'm just concerned about your health..." (which, hopefully, is at least semi-true!
I'm just saying...