Need help figuring out if I'm just a crabby grinch in this situation or if it's something I have a right to be irritated about. My roommate left several days ago for a business trip. On his way out the door, he left his keys and said, "I'm leaving my keys because this girl I know needs a place to crash for a few nights so she might come when I'm gone." I thought it was weird that he didn't ask me in advance, but figured it wasn't a big deal, since he'd been helpful around the apartment lately. Figured I'd let it slide. Then the day arrives when this girl is supposed to come. She was meant to arrive at 3, didn't show; texted at 5 to say it would take her several hours to pack; finally arrived around 9. So, I spent a good six hours sitting around waiting for her (I had to go downstairs to let her in). I was irritated but tried to be hospitable. Then I see that she has an absolute ton of belongings - several huge suitcases, plants, a guitar, boxes of books ... it suddenly seemed like she planned to move in permanently. When she brought all her stuff up, she told me she is staying here for two weeks. Not a couple days, two weeks. Moved all her stuff into all the cabinets in each room, made herself at home. And I feel really really really uncomfortable with this situation. She's a nice girl and all, but she's a complete stranger. And I don't want to be around strangers in my final weeks of pregnancy, let alone have them inhabiting my home. Now every time I want to go to the kitchen for food or to the bathroom, I run into her and she insists on making small talk. I feel trapped in my own room. She also has a habit of constantly cooking in the kitchen, which sucks, cause I need to eat about every hour and I find myself having to wait for her to finish. Am I wrong for thinking my roommate is out of line here? I'm the leaseholder and I am the one who is responsible for everything with the landlord. Which means if the landlord shows up and is unhappy about a random person being here, I'm the one who faces eviction and problems down the line.