I made a Tinder profile in my best friend's name
What made you create a Tinder profile in someone else's name?
I just want to deflate her ego by making her think she's so hideous
Identity theft is when someone uses a victim's personal information to pose as the victim in order to obtain goods or services. You should delete the profile you created and make amends with your friend.
I will not delete it until she spends a night with me. This will deflate her ego so that it will happen.
No, because she would be too upset and disgusted by you to do that.