During the holidays we (me, my partner and his 15 year old daughter) usually have a communal jigsaw puzzle on the go in our house for anyone to take part in when we have some down time. 

A few days ago I started a new 1000-piece puzzle. No one else seemed interested so over several hours on the first day I put together a couple hundred pieces by myself. The next day I got up early and continued on, getting to to about 2/3-3/4 done. 

Up to that point the other members of the household hadn’t really looked at it. They’d maybe put a piece in if it was easy while they were waiting for dinner or whatever but nothing major. 

On the second day, when it was around the 75% mark, I had to go and pick up a friend from the airport. I was gone for a couple of hours and when I came back, the puzzle had been finished - except for a single piece that had been left for me. 

Am I the asshole for getting upset about this? Finishing a puzzle is always the best part and I had spent so long getting it up to the point where I’d left it. 

My partner didn’t understand and out of anger, he pulled a section out of the middle so I could go back and finish it. It was a section that I’d already done before I’d left and instead of completing it, I just put it all away. I couldn’t look at it without feeling disappointed. 

AITA?