I am in love with my best friend

I am in love with my best friend. And he has a girlfriend. She gets super jealous and throws her self at other guys to make him jealous. She reads through our text messages. And because of her, he barely talks to me anymore. But before they started dating we told each other everything, I know every single thing about him and he knows every single thing about me. Every time he told me he loved me and I said it back I know I was talking about a different type of love. I know how much he cares about me, he cares about my opinion, he cares about my wellbeing. every time we were together it felt like a fairytale, we just clicked so well together. We are the exact opposite but we have so much in common. He is also absolutely gorgeous, he is super fit, and his jawline could cut me. he is legit my perfect guy. He’s just the right height, body type, personality, everything about him is perfect. But he won’t ever see me the same way. Somethings weird tho, his girlfriend looks a lot like me. Like we have are differences, I am a little skinnier and I have lighter hair but people mix us up all the time. And they don’t talk like we use too, he told me everything, and he doesn’t tell her much. We easily could talk about anything, and they always have awkward text conversations and she never knows what to say. I don’t know where I am going with this, but u really like him.