I do not miss my ex wife. I do miss my dog. Any council?

My marriage sucked. My wife was a moron. Spare me the question why did you marry her.
Seemed like a good idea at the time.
When I knew it was hopeless, I moved out. I left a lot of shit behind. Including my dog.
My divorce turned into a gunfight. Actually, I have been in real gunfights and my divorce was more unpleasant.
I gave up a lot, just to avoid the bullshit.
Including my dog.
At the moment, I am having a moment. I feel bad about losing the dog.
Any word of wisdom?