I don't know exactly what happened, but I really am nervous about this.

I came back to my dorm today at around noon after leaving thursday night to get some stuff from home.

I'm not expecting my roomate to be in the room since she had a required activity to attend to (were both in a scholar's program, but I'm a sophmore so I didn't need to go). But I walk in and see her half-asleep in bed. So I put my stuff down and leave the room to let her sleep.

I come back maybe an hour later and see that she's gone. The door is unlocked - which is very wierd for her because she's very strict about keeping the door locked when neither of us are in. A while later she walks back in and seems very unlike herself - sad and detached. She sits on her bad and we start to talk. I ask if she's okay and she says yes.

She asks me if I've seen her mom. I say no, she says she was supposed to meet her at eleven in the lobby (she says she went but her mom wasnt there) and asks me the time. I say 2 PM and she asks me what day it is. I say sep. 2nd, and she asks twice if I'm sure. She says: "Are you sure its not the 25th of August? I was supposed to move in on the 25th of August"

I start getting very wierded out at this point.

She keeps sitting next to her bed and starts saying some odd stuff: "Sometimes I try and see things, but they're not there" (something like that).

After a while she goes back into bed and just curls up under the blanket. After a few minutes she asks me if I've seen her dad.

I leave the room once she falls asleep and I go down to the service desk since I needed to turn in some papers. I go get some water from the store, and when I get back she's gone (and the door is unlocked again). Its night now and I haven't seen or heard from her.

I asked around on the floor and one person told me she hadn't seen my roomate since last night.

She has never been like this before, she's normally highly social and has friends over. I don't think she was high or drunk, I'd probably be able to tell if she were. A few days ago she broke down crying when I was in the room. She just said she was homesick and didn't want to talk about it, but I suspected there was something more (death in the family was my guess). And I thought she might have depression.

I'm really worried right now. I considered going to my RA and telling her about this, but I'm not sure what I should do.

I'd like some advice.