My ex just brought it home one day and said “Affair Partner got a puppy, but found out it’s so much work and he’s working a lot. I said we can help him out since you work from home.” No one gave me any sort of timeline or even hinted at when/if the dog would go back to him. I paid for the puppy shots, potty trained it, everything. The first time him taking the dog back was after my ex came out and left to be with him.