For them, there was no happily ever after.

He rode off to more battles; more distant lands that she’d seen on a map but could never remember their location. They were important, he said, very important to Wu.

So she watched him leave, again and again, and every time he came back he looked worse and worse.

Then he lay dying–young, too young–in her arms. They watched the mighty River rush by and he sang the lament he composed to mourn his unfinished business.

He left her all alone, a man’s name on his lips as he departed.

Unnecessarily Long and Tiresome Authoress’ Notes:
According to Romance of the Three Kingdoms, Zhou Yü’s last words were “Having born Yü, wherefore also Liang?”
Historically, Zhou Yü bore Zhuge Liang no personal animosity, and was in fact known to be a very amicable, charismatic man. However, he did write to Sun Quan urging him to kill Liu Bei, warning him of Shu’s danger to Wu, but Sun Quan didn’t take his advice.