Something crossed Namor's expression that was very rarely seen there. It was compassion, and he felt it for Carol and her family situation, the circumstances she was about to go and face. She was brave to go. He felt a renewed respect for the woman who, at times, drove him into a rage. Namor had led his people into wars before and had only half of them come back alive. He knew what loss was and he knew the judgement that family could place squarely on your shoulders when your choices were not in line with theirs, and the result had lead to suffering and loss.
He had lost his mother, the most treasured person in his life. His father was long dead, as well as his grandfather, the previous King of Atlantis. His cousins and their constant plotting and undermining was controlled with a hard hand, but Namor still knew the feeling of occasionally being reluctant to face them, especially as he continued without an heir.
Namor inclined his head to Carol in a gesture of respect and he moved to leave, pausing beside her to rest a hand on her shoulder. His eyes met hers, intent and not mocking or condescending but level from peer to peer, warrior to warrior. "I am sorry for your loss, Carol Danvers. Good luck."
With a final nod, Namor moved away from her so she could get back to her workout without any more of his influence, which he knew sometimes caused her agitation to rise just by being around. As a show of respect, he gave her the space, surrendered ground and withdrew so she could find the state of mind she needed to face her family.