I think I screwed up. I keep forgetting to feed my dog and now he's underweight.
How did you forget to feed your dog so often that he's underweight?
I work quite a bit and then on the weekends I'm out with friends. I guess I just forgot.
Forgetting to feed your dog is wrong and irresponsible behavior since pets need food to live and cannot feed themselves. Taking care of your pet's health is your responsibility and it's morally wrong to shirk that responsibility as a pet owner. Set a reminder on your phone to feed your dog and ensure that you follow up on maintaining your dog's health.
I'll have to be more responsible and make sure I feed him.
Maybe you should give him up for adoption? It sounds like you're really busy and the responsibility of a pet is too much for you to handle right now. Make sure to make the best decision for your pet.