Fake boyfriend (the dare)

Y/N was the average high school student. Not apart of the popular squad, but not an outcast. She was a happy girl with a sweet family, friends and oh right well she has this weird relationship with a guy named Brandon. Brandon is a basketball player who is teasing her alot and so does she with him. They can rarely agree on anything but doesn't necessarily despise each other, I guess you can say that their way of communicating is teasing. But one friday night her relationship with Brandon changes through a dare. Their friends are teasing them saying how they actually have feelings for each other, but Y/N denies straight away, not having an ounce of romantic feelings towards him. So a dare comes upon them: Be in a fake relationship with each other and if no one catches feelings within the next 3 months, they both get 300 dollars each, but if they both do or don't, then the friends gets to split the money. Sounds like easy money right? Well according to Y/N it is, knowing she would never like this boy, but we will see...