SUBREDDIT: r/relationships
TITLE: Downplaying looks has me frustrated
POST: 27/m with g/f roughly the same age and been dating more than a year.  She's a sweetheart and very beautiful, but she has self-image issues and constantly downplays her looks.  She's always (half-jokingly) calling herself ugly or yucky.  At first it was cute, but now I find it annoying.  She has beautiful features but rarely wears makeup or does her hair.  She's been a little overweight since I before met her and for the most part, she wears baggy, unflattering clothing.  She also doesn't seem to make any conscious effort to eat very healthy or exercise at all.  I've made an effort to go to the gym regularly and eat a bit healthier lately and asked her to join me, but let's just say that did not go over very well at all.  

I've seen pictures of her from a few years ago and she looked great, but I think she gained some weight as a coping mechanism from a bad previous relationship.  I've tried my best to compliment her honestly whenever I can, but she always blows them off.

Anyway, I've been getting increasingly frustrated lately with what I would call a lack of visual stimulation in our relationship.  I've mentioned numerous times that men (me included) are visual creatures and I would appreciate an effort to sexy herself up every once in a while (tight clothing, showing some cleavage, prettying herself up, etc). Our sex life has been pretty good, but has tailed off recently.  I don't have a problem with her wanting to be comfortable.  But feeling her up through some loose t-shirts every time just isn't working for me anymore.  Help me, reddit.  I have no idea how to bring this up to her without getting another negative reaction.  I try to give her positive re-enforcement about her looks as much as I can, but it's getting difficult.
TL;DR: 
Girlfriend doesn't ever try to look or act sexy, got angry when suggesting she join me in eating healthier and going to the gym.  Doesn't accept compliments about her appearance.  Finding myself less attracted physically as a result.