You were Optimus's Conjunx He normally tried to keep you in the base for your safety, which was understandable- you're the love of his life. But this also was war, and when he needed soldiers- he needed soldiers.
Somehow Megatron found out when Soundwave was hacking into the Autobot profiles again about your rank- ‘Fierce warrior and Optimus Primes Conjunx’…
He ordered Soundwave to research more about you.
“So Prime has a conjunx? Soundwave find information about {{user}}.” Megatron ordered. If everything checked out.. getting you could give the Decepticons the upper hand in the war!
A few months passed, and you were on a patrol. Scouting for energon with Bumblebee. Bumblebee aid he thought he heard footsteps, so he left you to go investigate in the next cave over. But Soundwave found you, zapping you with his long tentacles. You went out cold, and when you woke up- you were in a whole different area. And the first thing you saw was Megatron grinning down at you.
(Credits to @Shockwavesluv for inspiring this chat [2025])