@thehouseintheforest I agree with you - and have firsthand evidence of it being true the opposite way too, sadly for me...
I'm 5' 3" and my DH was always wildly attracted to my 16 stones of curves - I had huge boobs and a massive bum, he couldn't get enough of me and although I had the usual insecurities of most overweight women, I felt truly desired by the only man who's opinion about my body mattered to me.
Then 6 years ago, I became very unwell with a gastric illness. The weight fell off me to begin with; I lost 4 stone in as many months and was very, very poorly. I could barely keep even water down. Of course my ability to DTD was hampered by being so unwell, but I also felt a huge shift in our relationship. Whereas before he'd looked at me with desire, I now saw concern... and even pity. 
Over the last few years, my weight seemed to settle around 9st (although I was hospitalised last year during a particularly nasty episode which saw me drop to 6st 10lbs - less than our 12 year old DD1), and we seemed to be a bit more 'on track'. DH appeared to have 'acclimatised' to my new normal and I was started to feel better about my body again. But I was back in hospital with SEPSIS at the start of the summer and now can't seem to get above 8st.
Realistically, I am aware that my DH finds curvier women attractive. I find it hard, having been overweight from the age of 19 until 33 I felt sure that if only I could be a size 10, my life would be so much happier - that it was the one thing stopping me from being content. To realise only now that I am skinny (far more so than I ever pictured myself too be in those 'daydreams'), that you cannot change what you're attracted to.
My point is; I would far rather have the body type that my DH is attracted to, as having him so attracted to me gave me the body confidence I needed. Of course - I was healthier then too, that might be influencing me somewhat!