I thought it was from Kaworu's pov because of these lines
"My first visit to the Louvre was nothing special because I'd long ago already met my very own Mona Lisa"
"The cogwheels started to move the day I first saw you. I couldn't help but feel an unpreventable premonition of loss."
"I pretended that I wasn’t lonely …well, we both did, didn’t we? Desiring someone, in other words was the same as hurting myself"
But I guess it also works if it's from salaryman Shinji's pov.