Does she see me as a creep for checking out her coworker ?

Iv had the same job advisor let’s call her L for 6 months to help me find a job and I went in to one morning appointment after I passed a job interview for a bar job. I’m male aged 21 look younger and I’m always very quiet and shy/nervous and she knows this I’m sure.,(appointments are only like 10-15 minutes a week)

 L is mixed she can be nice but can be moody and snobby.

Anyways this appointment L was using the mouse of her computer looking at the screen checking something and I was to her left facing her. During this pause I turned to my left to look around the office as normal and then more to the left another job advisor had a short dress on and I didn’t stare but I looked when I noticed her for 2-3 seconds max and turned back forward with my head down quietly. (She was walking away in the distance with her back turned so she didn’t see me) 

I normally looked back forward with my head down shyly Then out of nothing L giggled under her breath and said smiling ‘you looking at her there?’ In a smiley/giggly way Whilst looking at her computer screen the whole time still Quietly but I juts heard her enough to made out what she said. I didn’t say anything and kept my head down

💡I’m always very quiet anyway with her. And she seems to hate me/short with me and It makes me nervous. 

Is this bad I looked at her?

***what I mean is how did L notice when she was looking at the computer screen and not me the whole time***