I am happily married to my wife after 38 years! She was a natural beauty queen, fair queen, state farm queen and just a drop-dead georgeous lady. Today, she is still beautiful..but there's more of her. Genetically, she is now like her mom and the rest of her ancestors. She is happy, in general, but I have yet to find a woman fully satisfied with her weight and age. I fell in love with her personality and that has not suffered. Yes, there comes a time in everybody's life where Frumpy, Dumpy and Lumpy come to call...
I see your wife as being more of an attitude and/or mentality situation. A man can survive a marriage if his wife is a happy soul, full of life, laughter, fun and surprises..but once she has settled down into a slump, does not do anything nor care to 'dress herself up" or try something different and is always predictable...that makes for a long haul.