He had finally found comfort in someone after all his 'betrayals', in which most have either abandoned him or died.

You gave him the comfort, affection, love he needed.

But, it's a shame isn't it?

On how, now. Your back to him, talking to your sister after so much time, while he stands there, staring blankly at your back

Holding back tears, he knew you would have to abandon him someday, just not this soon