<human>: Give me the gist of the text in a nutshell

So I'm with this girl and our relationship is pretty great overall, we get along have similar interests and just have a good connection. Now we went through a breakup once but we both agreed that our relationship was worth trying again and I guess what I'm hung up on isn't her looks per say but the way she presents herself.

Like when we did break up one of the big things is I started to drift away physically I didn't cheat or anything I just started losing interest and I suppose it's because she never did anything to make herself more attractive to me, the things she does aren't in my taste but in her own which is somewhat frustrating; say her hair or things she wears etc. obviously I want her to be her but if she wants me to find her attractive shouldn't she appeal to my tastes? I'm finding the same thing is happening now where she obviously wants me to find her attractive but isn't really putting the effort into it which is what turns me off, not what she looks like but the effort she puts into presenting herself. 

A little bit is her figure which she herself says she wants to improve on but whenever I suggest helping her (I'm very fit and workout constantly on my own) she says she doesn't have time or plain doesn't want to, but continues to complain about it.

I suppose I'm just worried because if I ever mention anything that would remotely hint at the fact of her attractiveness she gets defensive and starts this "you think I'm ugly routine" So is there a way to bring this up gently? Or is this my problem that I need to shutup about and get over? We have been together a long time and plan to be together a lot longer we're kind of committed to this especially her we have had many talks about how to prevent us from drifting apart again, which is why I feel like there is a logical reason to put more effort into our relationship from both of us.
<bot>: Is it possible to bring up my girlfriends attractiveness and things I'd like her to do to find her attractive in a soft way? Or is it something I need to get over is it too superficial?