This is a mechs post but who cares.
What Tim had different pairs of eyes.... and Raphaella kept stealing them. And replacing them with one crucial difference. So Tim will just be chatting to someone and Ashes will just notice something' amiss.
There's anime style highlights in them.
No-one except Nastya, the Aurora and Raphaella herself know how it is happening and they all just assume the ship's haunted or something.
They try everything: Marius shoots Tim in the head several times in order to "turn him off and on again", they try replacing the eyes but somehow they always come back after a few days. One day Tim has been highlight free for about a week and thibk's he's safe until the moment he puts his eyes in the hearts a faint, caramella girls reminiscent song starting up downstairs.
Tim takes to wearing his goggles full time.
Finally, Jonny walks in on Raphaella fixing up a new pair of them and, sensing drama, immediately goes to tell tim. Unfortunately, his eyes are playing up again so he removes them and Jonny slowly moves his gun to point towards Raphaella while holding her down.
There are no more anime eyes from that point onwards.
Raphaella gives Tim anime eyes and Jonny can't resist instigating a fight.