Is it her?!

Sooo...as i am sitting here at my job (I work in a hair salon located in a department store. ) I look across my shop & see this girl working the stores register. She keeps looking at me. I feel like I know her... Or I should know her. Wait a min..it looks like the girl my husband had an affair with our first year of marriage... I can't remember because I only saw a glimpse of her 3 years ago. But that face though!! I just want to walk up to her & ask her name. I feel crazy right now! But at the same time... 3 Years ago she didn't have a problem "getting loud & roudy" BC she couldn't have my husband anymore...so I feel like she would have acted out if it was her? Ugh I just wish she'd get out of my view!