paul and lestat

i know lestat said he didnt have anything to do with paul's death, but at his funeral lestat tells louis that paul "longed" for that flagstone, and up on the roof, paul tells louis that lestat told him that he's here to take souls.

i know paul was already mentally ill, and disapproved of grace and levi's marrige, but do you think him seeing louis form a bond with a man that told him he's a demon could've pushed him over the edge?

also does anyone know why he disapproves of grace and levi's marriage? is it bc levi is baptist?! other than that i couldn't find anything else in the show that provided an explanation as to why he hated levi