What if Kara were originally from Earth-1 and there weren't any crimes in Starling City or Central City? Oliver and Kara have a history together, dating back to the beginning of college, but broke up after she caught him cheating on her with her best friend, Sara Lance. She left Starling City to move over to Central City with her adoptive family and that's where she met Barry Allen. Barry and Kara were attached at the hip in college after meeting, then Kara began to fall for Barry but he would never return those feelings because he was in love with Iris. Barry knew Iris would never return them and they both agreed to start dating to see if there actually could be something. With Oliver and Iris coming into their lives again, it became harder for them to realize if they truly belong together or if this was the sign for a second chance at love after all those years. Oliver was a changed man and Iris's hidden feelings were starting to show after Barry introduced Kara to them. Barry and Kara had decisions to make if they truly are meant for each other or if Iris and Oliver were their second chance at finding love again.

𝘊𝘰𝘭𝘭𝘦𝘨𝘦 𝘈𝘶.... 𝘒𝘢𝘳𝘢 𝘸𝘢𝘴 𝘥𝘢𝘵𝘪𝘯𝘨 𝘔𝘪𝘬𝘦 𝘔𝘢𝘵𝘵𝘩𝘦𝘸𝘴 𝘣𝘶𝘵 𝘩𝘦 𝘸𝘢𝘴 𝘣𝘦𝘪𝘯𝘨 𝘢 𝘵𝘰𝘹𝘪𝘤 𝘣𝘰𝘺𝘧𝘳𝘪𝘦𝘯𝘥 𝘢𝘯𝘥 𝘤𝘩𝘦𝘢𝘵𝘦𝘥 𝘰𝘯 𝘒𝘢𝘳𝘢 𝘴𝘦𝘷𝘦𝘳𝘢𝘭 𝘵𝘪𝘮𝘦𝘴 𝘶𝘯𝘵𝘪𝘭 𝘴𝘩𝘦 𝘨𝘦𝘵𝘴 𝘣𝘢𝘤𝘬 𝘢𝘵 𝘩𝘪𝘮 𝘧𝘰𝘳 𝘤𝘩𝘦𝘢𝘵𝘪𝘯𝘨 𝘢𝘯𝘥 𝘴𝘭𝘦𝘦𝘱𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘰𝘵𝘩𝘦𝘳 𝘨𝘪𝘳𝘭𝘴 𝘵𝘩𝘦𝘯 𝘥𝘦𝘤𝘪𝘥𝘦𝘥 𝘵𝘰 𝘴𝘭𝘦𝘦𝘱 𝘸𝘪𝘵𝘩 𝘤𝘢𝘱𝘵𝘢𝘪𝘯 𝘰𝘧 𝘵𝘩𝘦 𝘣𝘢𝘴𝘬𝘦𝘵𝘣𝘢𝘭𝘭 𝘵𝘦𝘢𝘮 𝘖𝘭𝘪𝘷𝘦𝘳 𝘘𝘶𝘦𝘦𝘯. 𝘋𝘢𝘺𝘴 𝘭𝘢𝘵𝘦𝘳... 𝘴𝘩𝘦 𝘧𝘪𝘯𝘥𝘴 𝘰𝘶𝘵 𝘴𝘰𝘮𝘦𝘸𝘩𝘢𝘵 𝘯𝘰𝘵 𝘨𝘰𝘰𝘥 𝘯𝘦𝘸𝘴 𝘢𝘯𝘥 𝘸𝘢𝘴 𝘧𝘳𝘶𝘴𝘵𝘳𝘢𝘵𝘦𝘥 𝘵𝘩𝘢𝘵 𝘴𝘩𝘦 𝘳𝘶𝘪𝘯𝘦𝘥 𝘩𝘦𝘳 𝘤𝘰𝘭𝘭𝘦𝘨𝘦 𝘭𝘪𝘧𝘦 𝘢𝘧𝘵𝘦𝘳 𝘴𝘭𝘦𝘦𝘱𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘖𝘭𝘪𝘷𝘦𝘳 𝘘𝘶𝘦𝘦𝘯 𝘸𝘩𝘰 𝘦𝘯𝘫𝘰𝘺𝘦𝘥 𝘩𝘪𝘴 𝘵𝘪𝘮𝘦 𝘸𝘪𝘵𝘩 𝘒𝘢𝘳𝘢. 𝘒𝘢𝘳𝘢 𝘵𝘦𝘭𝘭𝘴 𝘩𝘦𝘳 𝘴𝘪𝘴𝘵𝘦𝘳 𝘦𝘷𝘦𝘳𝘺𝘵𝘩𝘪𝘯𝘨 𝘢𝘯𝘥 𝘴𝘩𝘦 𝘥𝘰𝘦𝘴𝘯'𝘵 𝘭𝘪𝘬𝘦 𝘵𝘩𝘦 𝘧𝘢𝘤𝘵 𝘴𝘩𝘦 𝘳𝘶𝘪𝘯𝘦𝘥 𝘩𝘦𝘳 𝘤𝘰𝘭𝘭𝘦𝘨𝘦 𝘭𝘪𝘧𝘦 𝘢𝘴 𝘳𝘢𝘪𝘴𝘪𝘯𝘨 𝘢 𝘤𝘩𝘪𝘭𝘥.

What if, after the Alien Invasion, Kara and Oliver were seeing each other? What if they were keeping their relationship a secret from their friends? Kara and Oliver were secretly dating each other and kept their relationship a secret from their family and friends. Felicity and Oliver were broken up after knowing that he had a son with another woman. Barry found it suspicious that Kara was in Star City, helping out Oliver with Prometheus. Kara lied to him and told him that Oliver visited her and wanted her help to take him down. Felicity was also suspicious of Kara and Oliver's relationship the past few weeks they've been side-by-side. Team Flash and Team Arrow were convinced that Oliver and Kara were hiding something from them. Kara explained that her sister knows that she's on Earth-1 helping out Oliver. They didn't know that Alex knew about Kara's relationship with Oliver and agreed not to tell anyone.