How Do I Deal With My Ex-Friend and Her New Boyfriend?

GET YOUR MIND RIGHT Tionna Now more than ever we are confronted with obstacles and difficulties in our daily lives that we just can't seem to handle on our own. Fear not! Noted author and world-famous advice columnist Tionna Smalls is here to help you solve your problems! Today, Tionna tries to heal the breach in a friendship.

Dear Tionna,

So, like, major congratulations on the new column, it totes rules! Anyway, here's my problem: There's this girl I used to be, like, best friends with? And then she got this new boyfriend and he's a major drag? He totally turned her against me, and she doesn't even see how like majorly controlling and stuff he is? And they even started rumors that my ex-boyfriend and I have a sex tape, which is so not true? So, like, whatever, right, bad friend, I should forget her? But here's the thing: We sort of work at the same place and the higher-ups are always putting us in a position where we come in to contact with each other? I mean, normally I'd be like, OMG, I am so not dealing with you, but I need this job to help promote some of my other work? What should I do?