Do not think for a moment that the Viera didn't notice that slight shift in the man's expression. However, Theo was polite enough ( at the moment ) to not bring it to the forefront of the conversation. Instead he approached G'raha Tia. Closing the distance between them slightly, Theo had every intention to make this compromise fair.

"I will rest for only so long as you do."

Which meant that, ultimately, the onus would be on one Miqo'te.