This kind of person views herself as the star, and other people are the planets that revolve around them. She said things to you to get the response she wanted. Like feeding coins into a slot machine. She uses people. You thought her confessions were genuine, because normal people won’t say those things unless they mean them. She’s not normal, and that’s not your fault.

I’m sorry she hurt you so badly — that was abusive. Be careful of people who gush really early — you don’t have to disbelieve them, but be wary until enough time has gone by that you know you’re on solid ground and can invest your own heart. Two months of steady dating usually will give you a good sense of how they handle life — their temper, the way they handle money, conflict, inconvenience, etc. And have a sober discussion about the way you handle your sexualities.