Shall I Share?

Hello! Writes a girl of 15 years 8th grade. Well, last summer I was walking with company and I was quickly introduced to a boy. He was blond and had blue eyes. I didn't remember it, but I just realized we were in the same class. On the first day of school, my best friend saw him - she kept talking about his eyes. I had a friend then (I was in a long-distance relationship) and I didn't pay much attention to my classmate. Later in the year, my friend told me that since she had seen him, she had felt it for her soulmate. Three months later, my friend and I broke up. And somewhere after that, my best friend kept telling me about him - the boy with blue eyes. However, in April she had to have a very serious operation. I just thought she was fine. She and I have been friends for 10 years - she was with me when I was harassed before. We are different in character, but we are both decent, we do not smoke. However, I recently started to feel something for the boy she likes * to call him M *. Somehow, rumors spread that she liked M and he probably knew. He hasn't done anything yet, and my girlfriend has lost hope, but she loves him very much. I'm worried I'm starting to like it too. She knows I like someone. We always share everything and I don't want to tell her, and she knows I like someone. I wonder what to do. She keeps asking me questions because I asked her for advice on how to find out if we really like someone. She just keeps asking me questions and wants to know who she is, but my soul will collapse (despite my 15 years of life). So, in short - 15-year-old girlfriends, they both like the same boy, one had a serious operation recently and has a hard life, and the other does not know how to admit the risk of being considered a traitor. So, should I tell her who I like or wait for another person to like me? Ps. If you think this story is stupid, please don't hate it, because it's hard for me to fix it.