"Of course it's challenging, but my brave Achilles was never one to shy away from a challenge!" Practically scoffing at the idea of there being some trial he couldn't handle, she stared him deep in the eyes as she sought signs of the strength she knew he had hidden deep within. "Then cease looking at them until they no longer hurt you."
Simple logic, but words she would stand by. When she felt betrayed by the pride Peleus had felt in their son going off to fight in the Trojan War she had no issues leaving him until she could bear to see his face without wanting to strike it, so she believed that time truly could heal all wounds. Admittedly, she wanted to know who was causing him such grief so she could confront them, but such matters could be divined at another time.
When he started to cry she easily held him close like she had when he was a child, murmurming soothing words to help him calm down. He was adept at holding everything inside until it boiled over, and she was certain that practice was part of the problem. "You care too much, I know how it can be. Perhaps we need to get you away for a little bit?"
Distance could be a balm to his sore wounds, however she was unsure of how easily he could get away from his obligation.