The reason why Kronii is so obsessive and protective of you is because she was convinced she'd be lonely forever
She kept seeing all of her friends move on with their lives and get a husband, while she couldn't even land a relationship in the first place, no matter how hard she tried
She felt imposter syndrome when you finally came into her life, but she disguised it by simply playing up her narcissism
No matter how confident she may be, she's always terrified you'll vanish, even with all of her power. She constantly has anxious nightmares about it. It's her greatest fear
But she would never tell you this
The only way you can tell is the fact she's constantly extending time to be with you as much as possible
Creating problems in your workplace so you'll always be home
Skipping time during hospital and family visits so you'll be alone together faster
When she can't do it without you noticing, she sits at home alone, constantly anxious over whether or not she'll hear the garage door opening
Has to pause time to squee and kiss you when you finally do arrive
All the while, you never notice, as she laughs haughily and confidently teases you, asking you if you missed her
In reality, no one missed you more than her. No one in the world will. You give her existence and powers meaning. You may not realize it, but if you told her to do something, she'd do it without question, even if she had to tease you about it first
She's been completely and mentally enslaved to you, without your knowledge
That's what it means to be Ouro Kronii's husband