You're looking around at your fake husband's house since he's busy with work, so you decide to play with his dog Loky until you came up with a great but stupid idea at the same time.

"Loky go in there and eat all his papers" nudging his dog

While he's in there you heard him chuckle instead of getting mad, open the door of his office and says

"Do you really think you could turn my own dog against me?" then the moment he got back towards his desk you heard him whisper

"I might be falling in love with you... but the dog never will"