Sounds like she's the typical office Psycho to me! Smiling to the boss's face & pretending she's No. 1 employee of the year ..... then getting someone else to do the work she's supposed to do!
There's loads of stuff on the net on how to deal with these people but I found a particularly good link very recently because my daughter-in-law, who is a very capable person and excellent at her job, has suddenly found herself having to work with someone who
thinks she's the bees-knees and for some reason the bosses think so to. Until they wise up, my d-i-law needs to know how to deal with this two-faced person so I sent her this info - and she's said that it has been very helpful indeed!
Dealing with the office psycho « Angry 365 Days a Year
Good luck!