He sounds lovely, and a bit like mine. We have to be so careful around my sensitive little soul.
DH was having a go at me for an ill-timed phone call, and DS (2.5) said, 'Daddy is getting fust-ur-rated with you Mummy. He is cross.'
We both cracked up, and said yes, Daddy was frustrated. Then he asked, 'Are you happy Mummy? Happy now?'
We reassured him that I was happy. He has also started saying 'I love you xyz,' unprompted to his baby brother, even when he thinks we're out of earshot.