I get where you're coming from. When H threatened to leave for weeks, I thought he won't be able to find a place that takes dogs and he won't leave the dogs well, he did and then I thought, he'll come back to take them out and he didn't and then I thought when I have to go out of town for work, I'll call him and he'll have to come and take care of them and then I realized that in my mind, wanting H to come back because of obligations was the wrong approach.
I'm leaving for the first time today out of town and I've hired a dogsitter. I have to say, it was the fastest response I got from H when he inquired whether he needed to come over and I wrote back, "taken care of already. Thanks." He responded within 2 minutes saying he could do it but I just wrote back after 20 minutes saying there was no need that I had taken care of it.