No she dont like you. Shes been playful, fooling you around. Theres nothing in her actions to be 100% sure she does like you. She looks for very short moments when its the long moments that indicate interest.
Did she said she likes you? Did she asked you out? Does she compliments you?
She talks to other guys too not just you. Also why you think shes trying to make you jealous when she just talks, and why should you be jealous anyway? She might be laughting at you when shes near desk.
From my expierience when girl likes me at job shes sudennly wearing unessecary hot clothes(like in nighclub) and spending time near me smiling. Touching herself in more than friendly way when being in front of me. Not talking with anyone else except females. Not even looking at other guys but giving me long stares and saying loudly to other females that she likes me and telling good things about me so I can hear it.
Your girl is showing indications of interest yet some of her actions is just friendly and not exlusively related just to you. As long as she dont ask you out you cant be 100% sure.
Doubt kills more dreams than failure ever will