What a loaded chapter, right ...
I wonder if anything particular at all happened during the timeskip for Brett, maybe nothing did and he's just picking up this opportunity because it came his way.
Brett always on transactional mode... Yes he remembers Hayden's favorite dessert etc is willing to give time, affection, even throwing casually engagement as a mean for trust yet not a single time is he allowing himself to be emotionally vulnerable in front of Hayden.
It was so bittersweet, Hayden remembering the court situation, saying clearly what he thinks love is instead of a heartless marriage word. And yet, he tells Joel that he's stuck in this endless loop...

Ugh my parents are fighting thank you Hayden though for somewhat standing your ground, appreciate it but also I need the both of them to get their shit together bro, Brett what are you doing my boy. I need to see the info during the timeskip so bad.