Some people will do that, they will dislike everyone that came before them. Sometimes it is jealousy, sometimes it is actual care for the person they are with because they think that people in the past haven't been as good to them as they are. It is just the way some people are, and open and honest communication, done in a respectful and caring manner, is the only way to work through it.
However, I don't know if that is you. You seem like you are an immature fool who jumps to conclusions and blows things out of proportion. (If I need examples, the title of this post, the last sentence in the original post, and wishing death on Bonfire.) Obviously the world didn't end, because you are still here talking to us. So that was simply hyperbole. Fair enough, but it makes you sound like a 15 year old kid who listens to too much emo and watches Twilight all day, every day. It has been discussed that not EVERY woman is insecure, so that statement just makes no sense. Unless you have already decided to lump all women into one category based on your interactions with one particular woman. Which, if that is the case, means that there is really no help we can offer. Your mind is made up. And Bonfire... God knows I don't always agree with Bonfire's opinion, but to wish terminal cancer on someone? Come on now... You no longer seem like an emo 15 year old, now you seem like an emotionally-stunted adult who can only think on a 6 year old level, but is dickish enough to not have the slightest bit of care about human life.
I would like to point out that YOU came on this forum and posted. YOU asked people to comment. And when one person didn't do it the way YOU wanted it done, YOU wished terminal cancer on them. That seems to me like YOU are the one who is controlling and can not handle anything outside of your own narrow worldview.
Even if Bonfire said your children were baggage (which she didn't, I might add), that is not an attack on them. And even if you consider it to be an attack, your wishing cancer on her because of that is like dropping an atom bomb on someone who cut you off in traffic.
Your level of response is all out of whack. And I don't know if that has anything to do with your current gf not trusting you, but I wouldn't doubt it.
You also were upset because Bonfire called you scum and then edited it? I have no doubt that you have been called worse things in your life. I'm thinking of at least 20-30 worse things I could call you right now, in fact.
You say you want to have a mature conversation and discuss things. Then you have to be mature to do that. Your actions in this thread have shown you to be anything but mature.
I am sure that this response will have you in a tizzy and probably wishing that I will have cancer-stricken hornets fly up my nose and rot in my sinuses until my brain dissolves. And if that is your response, so be it. I don't plan on responding. But before I end this comment, let me add one final bit of advice - Grow the hell up.
Good luck.