Severance

Mark Scout didn't act like a loving husband in this finale. If I knew my wife was being held against her will and tortured (which Mark Scout did from what Cobel told him), I would give everything to get her out. Even my own life. He had that choice but never offered it.

Mark Scout could have offered Mark S the body forever. So instead of Mark S "dying" because a lack of a severed floor, it would be Mark Scout. How? Permanent OTC.

Mark Scout didn't know that Cobel was the inventor of Severed technology, but Mark Scout could have asked Cobel if there would be a way to make OTC permanent. Cobel would have been able to make that possible because she invented the technology and even OTC. Heck, once both Mark Scout and Mark S knew that permament OTC was on the table, Mark S could have even offered Helly R permanent OTC. Mark S and Helly R could have had a life together and Gemma would have been freed.

If the cost of freeing my wife was my life, I'd take it immediate without a second thought. Mark Scout didn't.