Why did Anne decide not to go out

From the text:

What's the matter now?" demanded Marilla.

"I don't dare go out," said Anne, in the tone of a martyr relinquishing all earthly joys. "If I can't stay here there is no use in my loving Green Gables. And if I go out there and get acquainted with all those trees and flowers and the orchard and the brook I'll not be able to help loving it. It's hard enough now, so I won't make it any harder. I want to go out so much--everything seems to be calling to me, `Anne, Anne, come out to us. Anne, Anne, we want a playmate'--but it's better not. There is no use in loving things if you have to be torn from them, is there? And it's so hard to keep from loving things, isn't it? That was why I was so glad when I thought I was going to live here. I thought I'd have so many things to love and nothing to hinder me. But that brief dream is over. I am resigned to my fate now, so I don't think I'll go out for fear I'll get unresigned again. What is the name of that geranium on the window-sill, please?" ch 4