This is probably a terrible analogy, but all I can think about is Princess Diana and Camille. For some reason, he felt that Kelsey was good enough, twice, to try and have a baby with. With Krystal, she was pretty much good for a few things, but not carrying his bastard child.
Good grief, thank goodness she didn't have that child with him- imagine the exorcism that would have been needed at the Franch, after having two women with babies dragging poor ole Patrick down, sucking up all of his money and time. ggggrrrr