Help!

Kimberly

Okay so my boyfriend means the world to me but before I even met my boyfriend I met this girl and she's adorable, goes to my school, tear younger etc. My boyfriend and I broke up, so I started talking to her. Kinda like a joke bc i didnt think she'd like me back, but she told me she liked me for real and then my boyfriend and I got back together the next day.. now I'm finding out she's telling her friends and posting things on Instagram calling me her girlfriend and her friends are requesting to follow me. So like I wanna be friends and like love her as a friend, but I domt want to hurt her and have her hate me. I'm kinda panicking as well because my boyfriend will think I'm cheating when I never asked this girl out and if he wanted to read my messages with her, he could. I have nothing to hide from him at all. He means the world to me. (We were only separated for 3 days)

WOULD APPRECIATE ANYTHING???