Why is my "suicidal" friend so goddamn annoying?

ok, so last year, me and my friend, lets call her jessy, saw some girl in our latin class. Let's call her laura. laura and jessy had pretty much every class together, so we all became friends. i never really liked her too much, but I guess she was fine. And then, about a month into the school year, she'd start being absent. at first it was once or twice a week, but by March, we were lucky if we saw her once a month. so, every monday after school, the time that me and jessy normally devoted to our monday routine- stay after for english teacher, take late bus to library, get corn dog, read comics and make fun of dumb girly magazines- we started walking to lauras house (about a mile from the library. meh.) and hanging out with her. she was never really begging to hang out or anything. she'd rather stay on her computer. Now, when i go on the computer i go on tons of things- memebase, facebook, failbook, oddee, etc etc. But she oly went on one website. Ourworld. its basically a crappy kiddy version of world of warcraft/webkinz/ club penguin/ yoville/any other game like that. Except all the word have to be in the ourworld dictionary, or they get referred to the earest dictionary word. after you send it. so if you said "heyy laura. y wernt u at school 2day?" it would say something like "help laura. winter at school day?" and its annoying. she spent all her money on this game, and ignored us in favor of it. One time jessy and i invited her over to my house to play on the trampoline/slip n slide/ go biking. but she said she was busy with a friend. so we were like, oh cool who is it? if we know her you can both come over. and she sed it was an ourworld friend who she was talking to online. so we ended up not hanging out. this happened countless times. she'd almost never come to school, and if she did, she was 3 or 4 periods late. one time she came to school in the middle of last period. her reason? every morning, she didnt "feel" like coming to school because she needed to sleep more. hmm... does that happen to every other middle schooler in our town? i think so! eventually she started reaching out for attention even more. she started faking mental disorders for attention. At fir it was ddepression. She would talk constantly about how depressed she waas, at the most awkward times. Aka, always. then she started cutting herself. most people hide their cuts, but she would shove it in their faces, making them really uncomfortable. like, one time, me jessy, laura, and a couple other friends were sitting at a table at lunch. we were laughing, joking, making fun of celebrities and teachers, etc. she was pretty much silent except to say that no music was better than nickelback's (more on tht after). then ,out of nowhere, she says that she cuts herself, and wants to die and starts showing us her cuts. she posts all of this on facebook, too. she, by the way, has only cut herself about 3 times, and no times has it left a scar. why? she does it with the plastic ring on soda bottles that tel you if its been opened. everything got all silent and awkward. like, way to ruin it. then she pretended to try and kill herself. how? by biting her wrists and falling asleep. her parents brought her to the hospital, and she stayed there for a month. then, when she got out, she decided to try on OTHER mental disorders. like, she would ALWAYS ask us if she should be emo vs goth, in, like, every conversation. then she pretended to have ADHD by being all hyper. that lasted about a week. now shes in her "boy stuck in a girl's body" phase. she wears boy's shorts, never shaves her legs (which would be fine if her hair wasn't black on the palest white skin i've ever seen. ), and hangs around boys. but, she never talks to them, doesnt have interest in boy-ish things, and they pretty much ignore her. she never laughs at any jokes. she just talks about her depression and SHOVES her "symptoms" in your face. she'll start making everything awkward for attention at the weirdest times. one time, me and jessy were fantasizing about what we would do if we could freeze time. we were laughing about how we'd change the teacher's schedules so everyday we'd have good food, no homework, etc etc. she said shed kill everybody, then herself, so nobody could survive. but she'd let nickelback live.she's way too obsessed with nickelback, too.If anybody says anything bad about nickelback, she goes ballistic.whenever you ask her what she's thinking about?nickelback.every single day she wears a nickelback shirt.they cost about $40 apiece, even though jessy and i showed her how to iron images onto t-shirts, one of our favorite sleepover activities.

I tried being nice to her, i really did. I invited her to almost evrything me and jessy did together, but she always makes it not only difficult, but also awkward and boring. its actually HARD to hang out with he