if you enjoy her company why not do so while doing what you like
or maybe cooking together or helping her along with dieting/sport?
If you dont want to be with her relationshipwise i dont see whats wrong with being friends with "open options" for a while?
if you want and are at that stage maybe you could even talk to her about it - how she intrigues you and you think she has a cute face and the like but you really are (at this point in time) not really physically attracted to her but rather more mentally. I dont know if that helps or if not.
If you think I am insulting you with my post or bashing you: You do not get the point.
I am not here to insult or bash anyone. I offer up my free time to help. Take from my post what is useful to you.
If you are angry about my post or myself, then please stop and think how that happened. Usually that is the way the brain responds if a critical belief system is challenged (its called cognitive dissonance). If you have trouble with it please answer in the thread. I will come back to you.