Honestly, it was about time Ji-hwan yelled at Yul. So far Jun has been the 'bad parent' and Ji-hwan was the fun one, which is why Yul throws tantrums like that and stresses out Jun more. Also, both of them getting jealous over the same person: hilarious. It feels like Ji-hwan is more insecure though.....
New readers skip chapter 32, it was completely unnecessary to the plot and you can more or less tell what was happening from the vibe at the beginning of ch 33.