Has she only heard bad things about the furry community?? I wouldn't say i'm a 100% fur at all actually (but its fun and everyones so much nicer on the forums), so maybe I could give you a bit of an insight?
When I first heard about furries, I heard they were all perverted, anti-social, and wanting to be something theyre actually not! And I carried that sweeping statement with me until I found out one of my friends was a fur (He even liked Yif) but obviously when I questioned these negative stereotypes, he showed me forums and told me to join one (this one, in fact!!!) When I got to know people on it, everyone completely went against what people had told me, and with the stereotype of furs being something they actually arent is wrong-- its exactly who they are!! And thats wonderful! But it may be that she thinks its not normal and no one else does it whos 'normal'-- maybe get her to join the site, talk to people and she might accept it a bit more.
Another bit of advice is that you could ask her if she has anything in terms of behaviour shes repressing because she doesn't want to seem 'weird', and maybe if she does you could encourage her that its okay to do that, then it might be better when you do want to do that.
Hope I helped
