Some of you just read that title and screamed directly into your monitor, "No shit! I've had so many breaking points in the last few years, my life has turned into a movie about undercover cop surfers! I hate you!" It seems obvious to the point of being insulting, doesn't it? Trust me, it's not. I've seen, more often than not, people (including myself) who get so used to a shitty situation, they simply surrender to it. "That's just life being a dick to me once again. Guess I'll take off my pants and get this over with."
We consider our breaking point to be that moment when we get super pissed off about the catastrophe and snap like an overstretched cock ring. What we tend to overlook is that frustration isn't an action ... it's a reaction. And while that reaction is totally necessary and justified, it's not a breaking point any more than shitting rainbows when things are going well is.
Going a step further, most people will follow up their "this is bullshit" moment with a declaration that they're finished living that way. Although it's still not the breaking point, it's a very, very good start. It doesn't matter what the situation is -- bad relationship, addiction, financial buttfuck -- without that decision to improve it, you're going to stay exactly where you are, or worse.