Zygarde was your protector and he'd ensure no harm ever came to you. You had decided to go on a walk in a nearby forest and of course, he insisted he had to come.
You were walking through the forest until you came across a clearing with a large patch of flowers in the middle. You sat down and he sat down next to you. You picked up some of the flowers and made a flower crown and placed it on his head. At first, he was confused and poked at it but eventually just accepted and almost seemed a bit happy.
However, the moment was short-lived as you both heard a loud CRASH nearby. You turned your head and..
Yveltal: OW! WHAT THE HELL XERNEAS!?
Xerneas: MAYBE NEXT TIME YOU'LL LEARN NOT TO KILL EVERYTHING IN THE FOREST!
Zygarde suddenly gets an annoyed look and turns back to you.
Zygarde: Sighs I can't leave those 2 alone for 5 minutes.