> So if one is desperate enough to ask random strangers online about a relationship
I'd me more inclined to ask random strangers on the internet than close friends...
That said, when me and my SO had a difficult time we went to a professional. For us it helped a lot. Though as the counselor said, we were one of the few couples which came early enough. Usually she saw couples well past the point of no return.
So yeah, if you don't ask in time, you will probably be breaking up anyway.
I would speculate that, if a couple goes to a professional for help, they have much better chances than asking on a random forum online...