Felicity worked at Queen Consolidated for Walter Steele. Walter and Oliver separately asked her for help leading her to believe Oliver was The Hood, and he brought her on board his team. Felicity now works alongside Oliver and Diggle as a trusted member of The Arrow team.
Oliver: Are you alright? Diggle had mentioned that maybe you were feeling a little left out.
Felicity: What? No. I just used to being your girl. I mean, not your girl, girl. Your girl. I know it sounds like the same word, but it means something different in my head.
Oliver: Hey. You will always be my girl, Felicity.
Felicity: You're not even flinching when he...
Sara: Pain and I came to a little understanding a few years back.