Warnings: spoilers for near the end of the anime, references to homosexual behaviour, violent thoughts and Freud. Nothing you shouldn't already be familiar with if you've watched the anime.
Disclaimer: I don't own Mirai Nikki.
Psychodynaic theory + someone's facebook picture of Yuno = fanfic.
It's been awhile since I watched the anime, so I can't recall the timeline too well so I tried not to fit this in anywhere specific.
Unbeta'd, because I'm lazy.
Coward
It wasn't quite Yuno's fault.
Yukki hadn't been brave enough. Or maybe he simply didn't love Akise as much as he hoped he did. Either way, he'd never challenged Yuno's obsession with his homosexual tendencies.
In so many ways, she was like a mother.
His mother had always been aloof and cool; he'd been the envy of all his friends at primary school. And even after the divorce, he'd never lacked for feeling loved. When she died, somewhere among the grief he'd shifted the role of mother onto Yuno, which served to make their late night capers even more awkward as he derived some sick comfort from having a mother figure again.
Freud would have made him a case study.
Compared to Yuno's, Akise's lips had felt like the answer to prayer as they shifted against his skin. And Yukki would moan and return any favours, though his mind was perpetually elsewhere.
The threat of discovery wasn't a kink of his, less so now the consequence of incurring Yuno's ire had substituted itself into the equation.
He'd never figured out how her 'Love Diary' didn't inform her of his infidelity. Akise, ever the detective, had suggested that her diary might be something like Kousaka's, yielding only futures that wouldn't destabilise her. When they slept beside one another, Yuno spooning her cowardly boyfriend as he stared at the ceiling, Yukki was constantly tempted to take the advantage – steal her diary, bludgeon her while she slept and slip off. He could meet Akise somewhere and run like they were Rosie Daniels fleeing her husband.
Yukki knows he never will.
Maybe he's not brave enough. Maybe his love for Akise isn't sufficient.
Or maybe he knows how lucky he is. Maybe he values Akise too much to risk him.
Yukki wishes that were true, but the one thing he knows is that he's really just a coward.
AN: Somehow I just can't take Yuno and Yukki seriously as a couple. To me she seems more like the mother of a rambunctious toddler than a girlfriend.