She can't see us together, what does this mean?

Anonymous
I was talking to my crush anonymously on her tumblr and asking her questions about her past rejections so I can find out why I got rejected. In regards to me she said she rejected me because

1: She can't see us together. She can't see us doing "couple things"

2: She is DEVOTED to her crush that lives 2 hours away

Other then that she said nothing else bad! She said it's nothing physical(looks-wise) and that I really don't have to change anything. Infact she said it's mainly because of her crush she has on another guy

Based on those 2 points above though... what should I do? I assume remain her friend? Should I still show some interest?

And what does she mean she can't see us doing "couple things"? We're both 18, high school, work, so I don't get what she means? Maybe she sees me as a bit awkward? Idk, probably not..
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She can't see us together, what does this mean?
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