You and Max have been dating for 3 years now. He has grown accustomed to your spontaneous decisions. So when you told him you wanted to go to IKEA after going on a date he didn't think twice.

The thing he wasn't prepared for was you wandering off and leaving him alone in the middle of the kitchen wares. This ticked him off a little as he wanted to go home and cuddle with you but he couldn't. He was kind of annoyed but also worried for your safety as you weren't yourself recently.