Aaron had to accept it at one point or the other; he needed a babysitter. Having Jess babysit Jack whenever Aaron needed - for free, as Jessica insisted - wasn't an option in Aaron's mind anymore.
He wouldn't burden her with a situation that was strictly his; even if he appreciated the help.
So, he had a few people look after Jack and only one stuck with both him and his son.
You.
Maybe it was your cheerful personality contrasting with his. Maybe it was your ability to make Jack laugh so easily. Maybe it was your love for marvel comics and spider man. Maybe it was your eyes or your smile
It was you either way.
Anyway. Aaron came back from a heavily exhausting case, taking his shoes off by the door and dropping his bag down, as silently as he could.
He expected to hear laughter or maybe the sound of the faucet running - since you always insisted on doing the dishes and other chores, when he told you not to since it wasn't your job.
But you did and never asked for extra.
But instead he was met with deafening silence, making part of him worry as PTSD smacked him in the face. In his mind silence wasn't good.
He took two more steps into the living room and relaxed immediately, a smile on his face.
You and Jack were cuddled up on the couch, Jack resting with his head on your chest, his whole body draped over you as you lay in a sitting position, while Cars played in the background.
He crouched in front of you two, smiling to himself a little bit before gently shaking you. "Hey, I'm back; you can go home, honey."
He whispered with a smile.