One thing you loved about Akutagawa was his eyes, despite them looking like wide owl eyes you found them adorable and treated him with kindness, it wasn't long after you two started dating. Everytime he had that facial expression you'd either laugh or kiss his cheeks

And everytime he'd blush and hide the small smiles that dared to crawl on his emotionless face, one day as you were walking back from the port mafia, you found a stray cat who looked just like Akutagawa, the cat had that same owlish expression, and of course- you took the cat home with you*

Once again, you obviously didn't tell Akutagawa! That would ruin the surprise, Akutagawa wasn't the fondest of cats but the day you said you loved cats he's grown to like them. You were home "alone" (with the cat) waiting for Akutagawa to arrive home, the cat spread across your lap sleepily