PLEASE HELP!

Okay, recently I’ve talked to a guy we will call “N”. Well “N” has called me hot and some other stuff. But my ex best friend who put me through a living HELL likes him. I’ll call me ex best friend “E”. Well E and N are friends, N knows that E likes him he just doesn’t like her and had even had another girlfriend when E told him he likes him. The only thing that sucks is that N and I don’t go to the same school. Although N is 14 and I’m 13 there is no problem with that. I have no idea what to do at this point. She likes him a lot but she put me through hell. I also feel like she will start drama if she knew some of the things he says to me. I have just been questioning this a lot lately and was wondering if y’all had any advice. Any advice would be greatly appreciated. ☺️