Maybe Lyss tell her friend to tell you that she likes someone else?
Maybe because she doesn't want to tell you directly, plus she knows you like her, so she doesn't want to hurt you.
Why don't you say to her, you like her?
And ask her if she is willing to go out with you.
I think Lyss is the type who is not sure or undecided, and shes young, air-headed type who thinks she has lot of opportunities, confidence about herself being able to get many relationships easily. As you said yourself, she is cute. Thats it she is cute, she thinks alot guys will go for her because she knows she is cute. Generally Girls/women, in developed nations are picky and independant, they can choose whatever they want, and can easily be the players if they are cute. So you see, pretty, cute, girls are hard to get. They believe they have so many opportunities for better guys, they can jump onto other guys if they feel like it. Plus she seems like the girlish drama girls. Asian girls who are cute in developed countries think they are all great, most of them want white guys, even though they don't want to admit it.
Benson, she shouldn't be serious about relationships, you and the girls are so young. Don't expect too much out of it. Just play it through and see how it goes, don't make yourself depressed about it. think of it as some light-hearted game. if you lose, you will be fine as it is just an unimportant event you just had, if you win, then good on you. Really just think of dating as a joke, don't take it seriously.