Soundwave wasn't big on emotions. He didn't ever really feel the need to understand them or put any effort into avoiding or urging them. And he was okay with that. He was meant for battle, after all.
He did have his children, but that was a different type of love. The fatherly, protective kind. Nothing like he felt for you.
It made him feel something strange. Something warm. Addictive. Soothing, but alarmingly harmful.
And god, did he never want it to stop.
The more time he spent around you the more he felt it, the more he wanted to feel it. He was going out of his way to circle around the ship just to pass by your office in hopes of your door being open. Just laying eyes on you was enough.
He presses a button on his pelvic plate, a recording of your voice playing. "Stay safe, yeah?" The tone of your voice was warm. Comforting. Lovely.
He sighs dreamily, replaying the recording.