My colleague/friend is a very troubled and complex person. Her best friend is her world and when they fall out, she comes into work crying. She has done this every day this week and also admitted she hasn't eaten, smoked a load of cigarettes and doesn't get up out of bed until 1.15PM (She doesn't work mornings). She has accused a fellow colleague of harrassing her even though this woman has only been phoning her for work related reasons and not even that often by the sounds of it. She has many issues with various other colleagues and is highly, highly sensitive and reads far too much into issues that others wouldn't think twice about. She admits she needs help mentally but it didn't stop it hurting when she said today that she thinks I 'snap' at her at times. I definitely haven't and am so shy it just wouldn't occur. I checked with my other colleagues and they said definitely not and that they have never once heard me snap at H (colleague.) So I now feel quite hurt and like I have to walk on eggshells around her. I know she is ill but it seems she is blaming everyone else and it has now made me paranoid. I wont bring it up with her as I know from experience, it will lead to screaming, crying and suicidal threats so what should I do now? I am only human and it is like she expects me and everyone around her to be perfect. I dont see why I should get these unfair comments thrown my way and like I say, she is the same with my other colleagues. It drains me. What to do now?