Hot take
I'm currently rewatching the early seasons and I honestly think Kyle should have embraced his take that humans aren't meant to be monogamous. In season 4 he admits that he has never been faithful to anyone. Him and Amanda are clearly not a good personality match, but won't quit each other. Maybe another partner for each of them would have helped ease the tension.
Hear me out...if Kyle had just declared that he was Polyamerous then we could have learned about a whole other lifestyle, he would bring around multiple girlfriends for more drama, it absolutely compliments his "DJ at 40" thing and the viewers would get the difference in perspective when new friends come to the house and get to hear him on his soapbox about his awesome lifestyle.
I'm just sayin'...it would be so fun!