The Book of George (by Kate Greathead)
Like Liars, another Tournament book about an annoying man-child. However, because he's aware of it and often quite self-loathing, it was more entertaining than rage-inducing. Sometimes hilariously funny, in fact. And people call out George directly all through the novel, which is satisfying.
The blurb describes it as a "razor-sharp but big-hearted excavation of millennial masculinity" and I agree that it's big-hearted. The reader does feel for George, even as he bumbles through his life making terrible decisions, losing his temper, and being an awful boyfriend to his long-term partner Jenny.
I also enjoyed the format, which is vignettes from George's life that each generally skip ahead about a year each time. Overall, as you can probably tell, I liked it a lot!