I was doing sweet talk with my gf and this happens, help?

Im a guy and i have a gf that i love very but right now she is mad at me because of this text " I don't know why the other guys had to throw you away like that, to me you are a national treasure that I'd keep forever :)" but she said "so you assume they just threw me away?" And I tried apologizing to her because i got the facts wrong but she got mad and doesn't even want to talk to me no more, and I am trying my all to give her space and I'd do anything and everything to keep my "national treasure" but do you guys THINK(not know) i will keep her ot will i lose her?help? Oh and btw I'm 17, she is 16 and she claims to have a really bad anxiety and a learning disability she says but I do not talk about it much so I thought the info could help a little more