This is my thought on this. You have to be attracted to your partner or else a relationship can't work. Now everyone's definition of beauty is different but if you don't think she is attractive then it probably won't last
Eh... here's my view on that. That scorching hot 10/10 body isn't going to share your hobbies with you, get along with you, and make her tolerable to be around day to day for the rest of your life. Besides, after a couple kids that 10/10 body will typically be a 6, maybe a 7 at best. If I'm looking for a committed relationship, body composition is low priority. It's still considered but a lot of other aspects outweigh it.
Let's face it, we all have compromises we make when picking someone for a relationship. The complete knockouts that have a 10/10 body AND a kickass personality AND share all your hobbies AND a freak in bed AND good mother material AND educated AND... you get the point... they are extremely rare. We all make sacrifices in our idea of a dream girl, lower our standards, and move around priorities to find someone. When you're younger, this is harder to do because you're thinking with the wrong head. lol You have to be open minded.
I was having a somewhat similar discussion to this with my younger sister earlier this year. She's 5'11, is a good looking girl, but has her priorities for men all kinds of fucked up. For one, she's only attracted to jocks and refuses to date someone who's shorter than her. She's had 2 guys who were educated, financially stable making great money, could provide for her, and she turned both of them down because "I can't date someone who's shorter than me." Don't be stupid like she is. lol