ohmygod I have a question and I hope someone can help me o:
I got a 10th villager in my town and I don't want her because I have 9 dreamies already.. how can I make her move out when she was the last one who moved in? ): can I only do that by getting rid of one of my dreamies?
It's still debated whether you can get the 10th villager out or not. I believe you can, it's just harder and takes longer for some reason. At any rate, I'd try it before I let a Dreamie go.
You can try introducing yourself, then ignoring afterwards until they decide to move. Or you can befriend them until they are best friends with you. Some say they're immune to moving until someone else has moved out and someone else in, others say they're immune until someone else has pinged to move, then they're no longer immune to moving, even if you deny the other villager's request. But like I said, I'd try it myself before letting a Dreamie go.