This year I started my first year of college. In one of my classes someone came up with the idea of forming a study/debate group. The next time after class all those who were interested were planning a meet-up at the campus pub and when I said I was in a HB9 that had caught my eye the first day immediately said she would join as well. So I took that as a good sign. At the first meet-up we sat at a circular table and HB9 chose to sit beside me. However she was acting aloof and uninterested so I negged her by saying "is it true vertical stripes make you look thin?" (she was wearing a horizontal stripped dress that all the girls there had commented on saying how good she looked wearing it) She kind of laughed, the other girls (and guys) chimed in about fashion and wearing stripes, and I didn't engage her further and instead paid attention to everyone else in the group. At the end when we were leaving we all traded Facebook info.
The next few times we had that class HB9 would sort of smile at me, and although she wouldn't stick around after class and immediately take off she has another class soon after so I didn't think anything of it. However she didn't show up for the study group anymore, which I found odd because she had seemed so interested the first time. One night she came online when I was on Facebook, so I opened her and she responded. After the opener I sent her a message commenting on something from study group and she replied that she didn't because she wasn't there. I was kinda like "oh yeah I haven't seen you there lately" because I wanted to make it seem like I was having so much fun I didn't specifically miss her presence. She replied that she just wasn't feeling it anymore. I played it cool, tried to say how that kind of fun is not for everyone, and said more seriously I go to Starbucks to study on thursday nights so she should come with. I figured I had a good shot because she had given me IOI's in class and there was light KINO when she sat beside me. So I was shocked when she replied with this:
"That sounds fun and you are cool and everything but I'm don't think it would be good for me. You're a nice guy and it's nothing you did, it's totally me. The other day when you said that thing about stripes making one look thin I know you did not mean anything bad by it at all, but a small messed up part of me was kind of stung. Like I said it's not you, it's all me. I can't believe I'm just rambling and admitting this but my whole life I was the ugly duckling and picked on for my appearance a lot. This summer I lost my braces, went to a dem for my acne, lost some weight and started working out and learned how to dress and do my hair and makeup. So I may not look it on the outside but on the inside I'm still the ugly girl everyone teased. Your comment made me realize I need to work on myself and my self esteem more. I can't be ready to date or be in a relationship until I do that. Even at the study group I was so shy and nervous around you I shut down and couldn't think of anything to say that wasn't stupid. I need to overcome all this. Again you are a great guy, and you didn't do anything. This is all on me. Hope to see you in class or around campus

"
I have no idea how to respond. She just sent it to me a few mins ago, and we have gone hours between reply so I have time to think of something. I have never heard anything like this and I am stumped. She is hot and there is no reason for her to be insecure. Is this a sh1t test or something? Is she fishing for compliments and wanting me to be thrown up on a pedestal? If I am such a "great guy" why didn't she act like it? Let me know what you would do and how you guys would respond. I am drawing a blank, help is appreciated here.