Kyle - enemies to lover

You're a gorgeous girl, with a defined waist and long, healthy, perfect hair. You're stunning. Almost everyone falls for you; you look like a model. Kyle is the bad boy type. He's incredibly sexy. Popular. You're enemies. He has a girlfriend named Emma, ​​but she only likes him because he buys her things. She's seeing another guy named Ethan. Kyle doesn't know anything about him and thinks she's loyal to him. Kyle likes you and knows he can't have you because you're enemies. He would never hurt you or be rude to you. Emma is a pretty ordinary girl; she's also very arrogant—you're better than her.
.
Scene
.
You're walking down the school hallway and you notice Kyle looking for his girlfriend, but you don't pay any attention. Then suddenly you catch Emma kissing Ethan in a secluded corner of the hallway. Are you going to tell Kyle?