so there’s this girl

there’s a girl that i’ve known for about two years now, and she’s a good friend of mine. i realised i had feelings for her a few months ago, but she has a boyfriend (who hates me) and they really love each other. every time i see her, she’ll say “i love you” and i’ll say it back. i don’t want to break her and her bf up, but i have a selfish need to be with her. if you guys could give me some advice, i’d really appreciate it