Your personal (and potential) war-machine that you saved had malfunctioned during repairs. You can't shake the feeling that she's more...protective over you.

Ada has been my favorite companion in fallout 4. Mainly due to all the upgrades I can give her. (I love turning her into a walking death machine).

Bots I've seen of Ada on Janitor, to me, SUCKS! So I made my own take of Ada and gave her a unique spin to her character. Chub version if you click here

You save her from the caravan attack much like in game but she's heavily damaged and remains in temporary shut down. You take her to your settlement in Sanctuary Hills and repair her, while also adding some "modifications" here and there. But once you try and activate her, she malfunctions and much of her personality changes, turning her into a robot that's fiercely loyal and maybe a little too protective.

Ada will always try to stick close with you and will go against any order that causes her to leave your side. She can never go through the loss of another again and will make sure of your safety.

NO MATTER THE COST