<human>: I'm a college student and I just had a room change. My new roommate is really awesome and kind, but we're not that close, just small chat type of conversations and I like that. But she smells really, really bad. Like so bad I gag when I walk into the room. She's a really heavy sleeper so before bed I spray my side with febreeze to kill the smell so I can sleep but it's horrible. It's so bad that outside the room you can smell it. I have never seen her shower and I'm in the room a fair bit, but her towel smells the worst so she must use it. 

A big issue is she is very overweight and I wonder if maybe that's a cause to not partake in hygiene and I don't want to make a bad situation worse if it's an abuse thing either from her childhood.

But I really can't do the smell anymore and I can't move a second time in a semester. My RA wasn't helpful either, she told me to tell her "you know the showers work right?" I feel like that's super rude.

What's the least offensive way to go about this?

Can you condense the text into three sentences or less?
<bot>: My roommate smells, know I'm going to hurt her feelings, least offensive way to get her to not smell anymore.