Arrow S. 1 E. 8 ‘Vendetta’

After witnessing Helena try to take out the leader of the Traid, Oliver decides to teach her that there’s more to justice than just revenge. He also fears for people to get hurt at Helena’s hands, and Oliver sees her as lost and he wants to save her. Diggle warns him about the trouble she could cause, but Oliver ignores him and needs to try to help Helena.

Arrow S. 1 E. 7 ‘Muse of Fire’

Arrow — “Muse of Fire” — Image AR107a_0037b – Pictured (L-R): Jessica De Gouw as Helena and Stephen Amell as Oliver — Photo: Jack Rowand/The CW — ©2012 The CW Network. All Rights Reserved

While going to meet Oliver for lunch, Moira is almost shot by a unknown assailant who manages to kill a man connected to a mob boss by the name of Frank Bertinelli. Oliver runs after the assailant, and is later reprehended by Moira and Thea for leaving Moira in the street after being shot at to ‘get a license plate.’