karabooo says:
... So... Theo's very irritable whenever Daryl is around, only slightly moody when neither Daryl nor Ezme are around, and awkwardly friendly when around Ezme with no Daryl? Is that right?
Well, you don't know what Theo is like when you are not around... on account of your not being around. Unless you asked one of the others if he was being weird in your absence... which seems like a difficult conversation to have. :)
The others —with their external viewpoint— may have put more of this together. It seems Daryl and Theo had a falling out, and it seems to have been about
Ezme.