"And do what? I can't go home again Sara. I'm an assassin. A killer. Not the Oliver Queen that they remember." No matter how much he might miss his sister. His mother. Tommy.

"If someone raises a hand to you, you cut it off." Simple. Cold. It's become easier over the years to just not think about the past or of home.
No. He will keep moving forward.
Take his revenge.

"They got lucky. It will not happen a second time."