Potty Training take 2

I hate potty training. It has got to be one of the most annoying tasks ever. Bob was completely unmotivated and we pushed him and bribed him because I knew he could do it but he just didn't want to. That was months of frustration and just not worth it. So, I swore with Kiera that I didn't care if she wore a diaper until 6. When she was ready, she could do it. Well, a month or so ago, she was interested. So, we had her sit on the potty. She liked it! She could do it! In 2 weeks time, she was wearing underwear all day, no accidents, telling us when she had to go, sometimes she even went all by herself! Then a few weeks later, she decided she didn't want to anymore. She started peeing in her pants all the time, she won't sit on the potty, she doesn't tell us when she has to go. At first I was mad, but then I realized, she'll do it when she wants to, so back to diapers. Sigh. Guess it was too good to be true.