Reading progress update: I've read 284 out of 358 pages.

Paper Towns - John Green

I have been enjoying this book for the most part, but the random present tense showed up again a few pages ago. I'm about 70 pages from the end and I'm fighting the urge to skim. Why put a fraction of the book in a different verb tense? Why? What purpose is this serving (other than to annoy me)? Why you gotta be like that, book?