Die for Me

In the last book of this series (I just realised I don't know what the series is called. Well, now it is called the Killing Eve series because clearly the show is better and with that name it would attract readers, like it did me, but I have no clue what it was originally called) it feels like Luke Jennings has no idea what he was writing anymore. After Codename Villanelle and No Tomorrow, in Endgame (or Die For Me, can't figure out why this one has two different titles) the story telling is changed to first person. I don't think I ever came across a series that changes the writing style in the last book and I was so confused. Did Luke Jennings really forget what he was writing? Did he really think he could pull this off? Was there anything he felt he couldn't accurately write in 3rd person?

Anyway, I couldn't get past the first chapter.