He told my boss that she needs to give me more work to do. And
there were some projects which we are supposed to handle together,
apparently he managed to persuade my manager to see that he is
handling a lot more stuff than me, while according to him, I am
just doing nothing most of the time 
Which is total bullshit cos I have almost the same working hours as
him, just that the workload is different only. Plus I have more
admin stuff to handle compared to him.
I can't believe that my manager believed the crap he said. Totally
disappointed in her.
Luckily I am also quitting soon 