What does she mean by, "Your just too good for me?"?

[Weston]

Me and this girl would text alot and I really didn't see her in school too much but she said she wanted to hangout and we never got tired of eachother and when I finally told her that I liked her she was really happy and said she felt the same way but I want to hang out more before dating. We still continue to talk/text almost everyday and then I saw on twitter she posted "Your just too good for me."

What does she mean by that? Did I do something wrong?

[spoonhead]

It means she's either got issues and doesn't think she deserves a nice guy or she thinks you're nice but doesn't fancy you

[thinker]

She is being sarcastic. she is demeaning you. she thinks, you are not good enough for her.