How would Light react to seeing his dating SO fall in love with L? (Your work is amazing!♡)
Hello Dear Anon! Aww, you are so sweet! Thank you! That means a lot to me! 🥰
He would be flippant about it outwardly. He acts like he doesn’t care. They don’t mean that much to him anyway.
Inside he is seething. It may be true they don’t mean much to him, but no one bests Light, especially the World’s Greatest Detective.
He starts planning. Planning ways to get make their time together unpleasant.
When he’s alone with his SO, he makes comments that are vaguely threatening and then laughs them off as misunderstandings if they call him out on them.
He wants to break up with them, but wouldn’t that just mean he lets L win?
No, it’s better to make it a hard as possible, especially if he is suspicious that L returns his SO’s feelings.
If/when his SO breaks up with him, all bets are off. He will find a way to use them to Kira’s benefit and if that means they have to meet an untimely accident, well sometimes bad things happen, don’t they?. It’s justice for not choosing him over L and now L has to live without the person he ‘stole’ from Light. (It will be the first and last time L takes something that is his.)