The exclamation mark in the prompt word isn't really appropriate here, is it. As much as I love the Korrlok pairing, it would take some serious character development shenanigans from when we last saw them in canon for them to have a healthy relationship. Realistically, I think it would be quite likely that Tarrlok would be emotionally domineering and without realizing it and lean hard on Korra to get her to see things his way.
Most of the time Tarrlok could convince himself that Korra was happy with him. She was affectionate enough, and she smiled so sweetly at him that he could feel his pulse race faster. But every few months they set a few days aside to make a trip to the beach, and these trips invariably ended with him doubting whether she was really content. She never told him she was unhappy living in a small town together, and when he asked she'd reply that she took a great deal of pleasure in the little details of day-to-day life. Still, whenever they reached the ocean, she could barely drag her eyes away from the horizon to look at him. She walked out into the surf with the water swirling around her legs as if it loved her as much as he did. She stayed out there as long as she could, and the resentment in her eyes whenever he called her in for the night always gave him a stab of fear. He was as much a waterbender as she was, but the ocean had never called to him in the same way.
Was it... him? Did the freedom of the open water beckon to her, whisper to her that she was trapped in a meaningless, dull life as his wife? Whenever they left to return to their home, she'd stare back through the Satomobile's window even after the last glimpse of the ocean vanished behind rolling hills. It sometimes took days for her to recover her usual cheer, and she'd always sigh with longing whenever the ocean was mentioned in conversation. But he could never say no to the next trip. He knew too well at this point the pain and anxiety the trip would hold for him, but when he saw her eyes light up in anticipation he realized he could never deny her anything. So he returned, time after time to pass the hours on the sand, watching his wife move through the water and knowing that she had no eyes for him.