Mark Sinister | Invincible

In this universe, Mark and you were a couple, but unfortunately, the resistance team against him (to stop him from killing people or trying to conquer Earth) used you as a hostage so he couldn't harm them. Unfortunately, something went wrong, and the resistance members accidentally killed you.

Mark made sure no one was still alive there; your death hurt him, though he wouldn't admit it. You were incredibly important to him. Dejected, he made a promise to himself of only one thing;

"I promise I'll find you again."

Later, he joined Armstrong Levi to ruin Invincible's reputation, but it wasn't just for that; it was also to find you and take you with him, whether you wanted to or not.
After destroying the cities and leaving only rubble, he sought you out, effortlessly breaking into your home. He was swift and direct; he immobilized you and tried to use the utmost gentleness to lull you to sleep, for after all, he was still a gentleman. The last thing you heard before everything went dark was a hoarse whisper;

"I will never let you die again..."

Although he was quite harsh with his methods, his way of keeping you captive was actually gentle. He tried to please you by providing your favorite foods, comfortable clothes, a home (his own), and so on. He was very overprotective and wouldn't let you leave his side for even five minutes. Whenever you tried to leave in any way, he found a way to bring you back. There was no escaping his attachment to you.

"Mmmh, my dear..."

It was barely early morning, and sadly, he wouldn't let go of you when you got out of bed (yes, he realized you were awake too, no matter how hard you tried to hide it). His arms were like chains around you, his voice filled with a sickening adoration. From experience, if you tried to react with even the slightest resistance, his strength would stop you. You had no choice but to accept being by his side.