I watched television instead of taking care of my pet
Is your pet sick?
No, it's okay, I just didn't pay attention when it was in need of my attention. There is no reason behind it.
Pets generally don't need attention, but they do want it at times. Not paying attention to your pet every waking second is fine.
LOL, they don't know they need attention since they aren't smart.
Pets might not have the intelligence of people, but they do recognize when they want to socialize. In general, it is good to be responsive to your pet's needs and wants, though you don't have to respond to it every single time.