Sorry for being a little late on this, but okay.
If a friend betrays me, I'm supposed to smirk and crack a one-liner as I walk away. Am I right?
You can walk away, you can pretend like nothing happened, or you can talk with them about the issue. The first is a shitty solution but sometimes acceptable, the second it naive but also sometimes the best solution to keep the relationship going. The third option is ideal, and usually leads to the best solutions.
If a girl I'm dating turns out to be a nymphomaniac or a cheater, I'm supposed to take that like a champ and move on. Am I right?
For the record, nymphomaniacs aren't always cheaters. You don't seem like you know anything about high sex drives considering how much you masturbate, though.
Getting cheated on isn't extremely uncommon, but that doesn't mean every girl out there is a cheater. And if it leads to a breakup, it's going to be as painful as any other way a relationship fails. Coming from a guy who had a relationship heading towards engagement broken off because my ex couldn't get over or discuss a disagreement from 3 months earlier (refer to dealing with betrayal for my criticism here), it's going to hurt like fuck. But the pain dulls. Don't say all women are sex-obsessed cheaters, though. That's just overgeneralizing half of the world's population.
If my parents hate me, I'm supposed to love them anyways. Am I right?
You don't get to choose your family. It's your choice to love or hate them, but you've told us your father wasn't abusive. You keep portraying your parents as awful people, including how they were keeping an eye on you after killing yourself. Every bit of information you've given us makes it seem like they care about you, and you don't return that feeling.
If I can't be a writer, I'm supposed to get hooked on something else I might not enjoy. Am I right?
No one's saying you can't be a writer. You can write as a hobby. You just don't write often enough to get close to being a published author. I wanted to go into writing too, and instead I've done film production and audio work. Life isn't just about doing what makes you happy all the time.
To gain friends, I have to make enemies. Am I right?
No? You need to act nice to people to make friends. Calling them retards on an internet forum and saying they betrayed you (then admitting they didn't) is a way to lose friends or make enemies. If you make an effort to be a truly nice person, then it's not as hard to make good friends.
To gain true love, I have to break hearts. Am I right?
Again, no. This is hard to answer, since I broke off a crappy relationship to pursue a girl I actually like. Human nature means someone always get hurt, though. There's no way to make everyone happy all the time. You're going to hurt people you care about sometimes, and they're going to hurt you. If they really love you or you really love them, then there will be forgiveness.
To play by the rules of life, I have to sometimes play dirty. Am I right?
Okay, I don't even know what you mean here. Not a strong ending, Connor.