Is he really worth it?, friend problems over a guy Options

[*~*SHy*~*]

Note: Sorry, this is a very long story


Two weeks after school started my friend who is a freshmen in highschool started liking this Junior guy. For the sake of this story my friend name is Eliza and the guy name is Shaun. Ok any how, she barely knew him and all of a sudden she considered him her prince charming, and kept saying how she is in love with him. At first he had feelings but they were not at the same levels as her. According to him they had a bet to see who was going to ask who out first, and that they were only friends. But to her, she considered him her boyfriend and was all over him. Since this was her first time with a guy she didn’t really know what to do or react to certain doings. From what i heard from him, he had been in a few relationships in the past, and was more advance than her mentally, emotionally and sexually. Then one random day i went over her house to talk about her relationship with him and how she wanted to go further. We went out side to talk and he was walking home from school; she invited him to stay. So from that moment on, she started pushing him towards me, and i start getting the feeling that he liked me. Then a week later both of them and a couple of my other friends went to play football. On that day something came over me, and i was flirting and cuddling with him. My friend Eliza got mad and just left. I went after her and told her i had no feelings towards him whatsoever. She forgave me and gave me a second chance. Then over the week i started developing feelings for him, and i did my best to avoid telling her about this. Until recently when i told her about this. I told her that i was sorry about this all, and that i never really meant for anything to happen. I been thinking that i should just leave him/ end this because no friend is worth losing over a guy. I told her that being detach from people is not going to solve anything. She told me that her detachment from people left her unemotional and she just wants someone to love her. I believe that this who problem just got out of hands and is so immature. Now the problem is that she ending our friendship over him? Should i stay and build a relationship with him, or should i leave him and try to rebuild the friendship?