Sometimes, you just change your mind. That's okay. In the post where I asked what everyone's oldest fish was, the oldest was maybe five years (if I remember right). So either everyone changes their mind sometimes, or everone makes poor decisions about tankmates, or everyone's maintenance leaves something to be desired. Otherwise, we would all still have every fish we ever bought. That isn't the case. Don't feel bad, you just decided to go a different route. Everyone does at some point.