My best friends boyfriend..., Oh god... Options

[I.Luff.Emo.Boys.]

Me and my best friend both have boyfriends. Last year I thought hers was a jerk, but this year hes in my 5th period class and i think hes cool. We're really good friends this year. I dont have any feelings toward him, and he doesnt towards me. Its just we enjoy eachothers company. I feel that my bff is starting to get upset that i spend more time with him than she does, and there have been rumors about me and her boyfriend. But none of them are true. I have my own boyfriend. I like him. Me and Nick (bff's bf) are just friends. I know all of you would prolly say "If she doesnt trust you, shes not a good friend" but i know if i heard 10 people tell me that my bff was making out with my bf i would be a little worried. Just because we laugh at eachothers jokes and tell secrets and stuff the TEACHERS even think we are flirting! BFF was talking to my 5th period teacher telling her who everyone's boyfriends are... and 5th period teacher says "I didnt think angel would have a boyfriend cuz she always flirts with nick" I DONT! We have fun together! This is pissing me off because i only like him as a friend. Not as anything else. I dont want to stop being friends with him so the rumors would stop, because i think i'd loose a good friend. Im so lost. What do i do?