I'll give you a few spoiler-free answers.
I also wanna know if the choice of god in chapter 15 matters.
Yes, but maybe not in the ways you think. Picking Aphrodite does not make things hornier, although that is something we could add in 0.5.1.
About the P/Clement inconsistency, when you finish the game please tell me what you think about it. I'm curious.
Thank you for your input and kind words, it's extremely appreciated.