Okay.
First of all, there are two kinds of marketing blurbs when you publish. There is a short, two to three sentence blurb that needs to be very catchy, and then there's the back of the book type summary.
What you have now fits the first category.
What you propose is the second sort. Of the three examples you have there, the first is the one that catches the attention best, with some judicious tweaking: "Lauchlan lead led a simple life, a happy one, and all things considered, he was quite lucky. He had a steady job, a roof over his head, and food on his plate, a family who loved him, if from a distance, and good company to surround himself by.
All it took was one night and a few too many pints for it to come crashing down around his head.
He didn’t know what drove him to it, didn’t know what he’d do, didn’t know what he’d done. All he knew was that he'd woken up in a strangers bed, with a stranger man curled against his side, with bruises like handprints on his hips, and the sinking realization that what he’d done could never be taken back, never undone.
He never thought he was the sort of man who would do such a thing. Never thought himself capable. Then again, he'd never thought he’d come to like it. Never would have believed he’d come to love the stranger him.
It turned out that there were a lot of things he’d never thought before."
Try that on for size. My editor tells me I'm getting better at these.