About a year ago, I adopted a 2nd dog. For the most part they get along pretty well. They like to play together and for the most part they play well together.

After a few months, they would cuddle up together, but I noticed my first dog started sleeping in a really tight ball. To the point his head is almost facing behind him.

I googled it. It seems that position is defensive. He never slept like that before. I can tell he does it now when he is upset about something.

He doesn’t seem to like to sleep near the 2nd dog. He will go into a room and sleep alone. Of course, the 2nd dog wants to sleep with him so he follows and and curls up next to him. He doesn’t get mad when this happens but I can tell he doesn’t like it.

They still play together pretty well. He even initiates play time with the 2nd dog. He does those big goofy hops when he is trying to get 2nd dog to play with him. It’s cute.

TLDR: how can I help my 1st dog feel more comfortable around my 2nd dog outside of play time?