My girlfriend wears make up to her factory job?

Now I've been with her for 7 years and we have two kids together but ever since I got laid off the same job she is at now she been wearing eye liner lip stick and eye shadow I've talked to her about this and she says she does it to feel good about herself but on days I tell her to go natural cause she is beautiful naturally I go to pick her up and she be wearing makeup. Is she doing this for other reasons than what she gave me or should I be worried she is trying to get someone else's attention.
My girlfriend wears make up to her factory job?
Post Opinion