Um, yeah. If a year goes by and the guys not approaching you, girls will assume you're not interested and get annoyed at you and themselves for even believing you did. So you might want to try and fix that??
It depends. I understand how hard it is to approach someone you like, the fear of rejection being a major deterrent. At the end of the day though if you don’t make an effort you can’t blame a girl for being a bit put out/ moving on.
Dont worry she's probably frustrated more than anything, not totally put off.