nobody likes rejection but unfortunately it's a part of life. If you want to know where she stands, you need to get the guts to ask her out. If she says no, then you know but if she says yes then you're all good. Fortune favors the bold!
Quote from UwuThemCheeks: “I thought you was also supposed to stretch the whole using his finger, I'm prob dumb ” that can help too. Otherwise if she anally masturbates a few times before, then she can get used to the feeling.