Well not said it, but heavily implied it. I could understand if I'm going around saying 'Look at me I'm soo beautiful' but obviously this isn't the case.
She's said this because I sometimes put make up on or use a mirror at work at lunch. So what? Like it's not affecting her in any way.
She's made comments about 3 times, I've just laughed but next time I'll say something maybe?
It might just be friendly ribbing as she's nice otherwise but not sure what her goal is. She's someone who doesn't wear a scrap of make up and that's up to her, I'm not someone who can do that and that's just me.