<human>: Can you provide a brief rundown of the text in within 3 sentences?

Throwaway because she knows my username.

My girlfriend Sarah* has always been one of those women who never leaves the house without make-up on. Nothing too crazy, usually just foundation and her eyes done, but she never skips it no matter where she's going.

We recently moved in together, about two months ago, and it seems like she's getting weirder about it. We're at a point now where she refuses to come to bed without tinted moisturizer "so I can't see her real complexion" and she makes a point to wake up before I do so that I never have a chance to see her "without her face on."

This morning I walked into the bathroom while I thought she was brushing her teeth (normally not a problem) but she was actually still putting on her make-up, and she got really upset and shouted at me to get out- I think she started crying, but she shut the door on me so I'm not 100% sure.

When she came out I tried to apologize, but she said she didn't want to talk about it. I told her that I wanted her to know that  I love her no matter what she has or doesn't on her face, but she just repeated that she didn't want to talk about it, so I dropped it.

Is this a normal thing for some girls who are really into their make-up/appearance and I just don't get it because I'm a guy? Or does this sound like it might be serious or some kind of body dysmorphia? 

I don't want to make a big deal out of it if it's nothing, but I'm worried about the fact that we've been together for 3 years and she won't let me see what her face looks like.
<bot>: My girlfriend won't let me see her without make-up on, and got really upset when I accidentally did. Should I be worried about her self-esteem?