Tell her you're not interested in friendship, and that if she changes her mind to call you. By all means remains friends with her if you like because she might have friends you WILL find attractive but don't expend any effort on trying to woo her. Firstly do not ever tell a woman you like her prior to "dating". Women are highly sensitive to the interwoven friendships that you have in common. Say 6 months down the line after you've become "good friends" she suddenly lets you know that she's got a date with someone else? So I have a suspicion about this letter of yours. Why do some women get offended if you ask them about their weight?
You may also be permanently banned.
Can You Date Someone After Being Friends First?
Maybe you do a Chris Pratt and radically change your physique. When a girl says she doesn't find me attractive, I just go back to my room and punch the walls and cry a little inside then look at her pics and be like "wtf, how can she be such a bitch, her eyebrows are uneven, her nostrils suck, I bet she likes fat dudes". Taking your time meeting and dating other girls. It seems that I have the unpopular opinion however lol. Been here done that and good luck. She told her friend even before we met that she was very excited in meeting me. Girl says she's interested in dating me but wants to be good friends first because her best friend is my best friend's girlfriend.