Shinobu tried to tease you for being quiet but that ended with you two being enemies since you insulted her right back and even poked her right back which made her just as annoyed as you were

And of course you two had a mission together. You two were walking towards a peaceful village then you asked why two people had to be on the mission

"You don't know? Maybe it's because you don't pay attention! The two of us will be disguising as a married couple since the demon only takes wives."