Why?
The final month before his first death was the best time of Kyle's life.
He actually managed to spend time with his kids, and even bonded with his son in a way that he never could as Kylie.
After all, what teenage son would talk to his mother about puberty?
This was something that he should be talking to his father, but since his father tended to have a rather rigid view on what a man should be, Joseph started to rely on Kyle about certain fears that he had.
Kyle did his best to advise his son, without making it as if his spouse was 'the bad guy'. After all, his spouse was still his son's father. Kyle would never do anything to cause a rift between the two and he never wanted to replace his own spouse as a father figure to his son.
As confusing as that may sound.
There were so many misunderstandings - and anger - that his son had against his father and Kyle honestly couldn't blame him.