Honestly, I never really had a high opinion on Oliver/Laurel, either versions (Earth-1 Laurel or Black Siren). Don't get me wrong, I can see the appeal to them, considering the comic books and Stephen Amell and Katie Cassidy had good chemistry but the original Laurel never really interested me much and in the beginning was indifferent to Oliver's trauma and treated him badly and her behavior in Season 2, while understandable, given what she had been through, was out of line, considering that she and Oliver were not together anymore and threw a fit at the dinner anyway and then there's her fooling Quentin in Season 3 about Sara's death and taking the Black Canary mantle, when she is the weakest version of the Canary, even Dinah Drake, despite how annoying she was with the Vincent situation, was better than Laurel. but Laurel deserved better than getting killed off and become a plot device to shove in Olicity and Oliver/Earth-2 Laurel would have probably been a rebound for both of them anyway, so it wouldn't last since at the end of the day they would be trying to replace the people they had lost, my issues with her self-serving agenda in Season 6 notwithstanding. I was indifferent to Sara at first, considering that she and Oliver screwed Laurel over but throughout Season 2 she won me over but her getting sent off and what happened with her later in Seasons 3-4 and Legends of Tomorrow, with her running away twice and then constant sleeping with girls just ruined her for me, which was because of Marc Guggenheim, who wanted to fulfill his Olicity dream, when Felicity was just becoming worse and worse since Season 2, even though in Seasons 6-7 she was better than Diggle, who also got worse and worse and didn't show any likeable change.
Oliver/Sara had probably the greatest potential which got blown because of Guggenheim, who ruined her and had her paired with her clone girlfriend, yuck and Sara seemed to less and less give a damn about her friends and family, which was because of Guggenheim.
Oliver/Helena also had some potential but they wasted it because they decided to focus on Olicity and then the Huntress was unavailable because of DCEU. Idiots.
I di not own Arrow.
Oliver and Helena laid down on bed, with their clothes scattered around as they snuggled towards each other, with their naked bodies covered in sweat as they both were panting out in exhaustion before Helena placed herself on top of Oliver and reached for the knife at the desk and neared it to Oliver's throat.
"How did you like it?" Helena asked.
"Well… this certainly was interesting. So now what? Are you going to kill me for what I did to you?" Oliver asked.
"There was a time when you were going to kill me for what I did." Helena noted.
"You'd gone too far. And you hurt my friend. You didn't care how many innocent people would get caught in the crossfire, as long as you got your revenge." Oliver reminded.
"That's not who I am anymore." Helena said as she put the knife back on the desk. "But you've changed too, Ollie."
"I don't kill unless I have to. But I'm not going to plunge myself that deep into the darkness anymore." Oliver said.
"So you think I have gone too deep into the darkness?" Helena asked.
"You tell me." Oliver said.
Helena stared at Oliver contemplatively before she pulled the knife, about to stab him but then tossed the knife away as they began kissing fiercely. Helena moaned as she felt Oliver give in and he placed his hand on her breast and other one on her abdomen as she began to moan and she wrapped her legs around Oliver's waist, making him give in deeper, while he was running his hands across Helena's chest, rubbing gently her breasts and abdomen before one of his hands made its way towards Helena's butt, gently squeezing her. He then bent down and began to nibble at her neck causing her to moan within his ear as he hands traced across his back. He kept on pushing in and out causing her to moan even more deeply and with his right hand he squeezed her breast and with the other her butt, making her moan louder before Oliver lowered his head down, sucking her breast, while Helena began kissing Oliver on his cheek and then making her way to feel the taste of his skin on his neck and shoulder, while panting out softly, while feeling the muscles on his back and hips before Oliver rolled over, while Helena placed herself on top of him, giving in, while running her hands across Oliver's bare chest and his hands were running down Helena's bare back towards her butt, while they continued kissing passionately.