The right dinosaur has chaotic dreams that make no sense but is hiding it to seem normal. It took me a bit to realise what the lower left bit was, which did confuse me.
This was my interpretation as well. I frequently have weird abstract dreams, where I'm often not present or not involved, and the dreams sometimes don't involve people at all. The ones without people are weird and hard to explain. I assumed that's what the lower left panel is trying to show.