Yorkie problem!?

My dog is almost 3 years old. He still pees and pops in the house, but not all the time. Most of the time when we are around he is fine; he holds it until we can let him out. When we are busy and not paying attention to him and/or keep him in the kitchen (instead of the crate) he goes. At this point it’s not a housebreaking issue, right? Is he just ticked off because we are ignoring him? I really need to resolve this issue, How?