She's your best friend and you just found out she has really bad depression. How do you react..?

What will you do when he is being too flirty?

Your sisters best friend, cute, has a crush on you, is bisexual so you can be whatever gender

Is pansexual so you can be a boy or a girl, has a BIG crush on you, she is flirty, and sometimes a little mean, but she doesnt mean it