Okay, as we all have roleplayed before... What do you do when you're encountered by a person who is tasteless/unfriendly/not likeable? Someone whose personality makes it hard to crack jokes or somewhat hostile when you try and ask if they are still interested in the roleplay? Maybe even someone who does something with their characters that you don't want them to do? This brings up a rather long story from years ago. Okay, so I was on a specific forum running a Hetalia roleplay. This was years ago so each reply was a short paragraph and that's it. A person joined our very tight knit group, and she was accepted into the group. Yet, every time I, as the GM, said something as a joke, she took it way too seriously and didn't find it funny, almost to the point of ignoring said joke. About three quarters into the lifetime of the roleplay, she got into Homestuck. At first, I didn't know what it was, but she was extremely obsessed and so curiosity got the best of me. I started to read the comic and... Holy fuck. People are actually into this crap? I know it's all due to preferences, and everyone has an opinion, but overall I thought it was the shittiest thing on the internet. I really, really, really hated it (and still do!). I left her alone, though. If she liked it, who cared as long as we were having fun? However, I noticed something... she would make references to the webcomic in something that was completely unrelated to the comic. We had separate arcs that involved animals, parallel universes, etc, and we all called them arcs rather easily. But of course, said person said "oh I'm going to call them AUs now" (AUs are a thing from Homestuck btw), and while everyone continued to say Arcs for a while, due to her saying AU everyone just said AU. I liked the sound of Arcs better than AU, but whatever, it wasn't that much of a big thing. We had a specific Arc/AU which involved medieval times. Of course, we decided which characters would be royalty while others would be peasants. The person said it would be "cool" to have "color coordinated blood" to determine which person was royalty or higher ranked than others (which is also from Homestuck, mind you). I, of course, said no; she responded by backlashing and stating "oh, it's my characters, I do what I want with them, blah blah blah". To avoid problems, I simply let her do what she wanted. In the end, all of the characters were forced to have color coordinated blood. Not only that, we all settled that one of my characters would usurp the queen and take her place at the end, but she went ahead and killed her off with one of her characters and took over the whole plot in order to make her character the king. When I complained, she backlashed again, stating that "we shouldn't plot so far in the future" when she completely overrided what was planned without asking if she could. At this point, I was growing weary of her. Several of the roleplayers told me to kick her, but she was such a vital person that kept the roleplay interesting and fun, I decided not to. Over time, she became more and more aggressive. Someone had wanted to join and she flipped out on them (I don't know what happened, it was a while ago). When everyone told her to calm down, she threw a tantrum and PMed me, complaining how everyone treated her unfairly and such. I replied that maybe she should be nicer and less assertive and aggressive in the kindest way possible, when I really wanted to tell her she was being a bitch. She had turned two of my closest friends against me and made others leave. What was her reply, you ask? A simple "whatever". That's right. The roleplay didn't last much longer after that, though. I quit, but I told the people who wanted to stay that, whatever they did, do not let the bitchy person take over the roleplay. They of course, agreed. Sadly, the new roleplay did not last long either, and the person dropped off the map (thank god she did). Now that I am older, I would have thrown her out after the first major issue occurred. I feel like I am an idiot for not doing so, and if I had, maybe I would not have made enemies or lost contact with friends. What would you have done in this specific situation?