He has gone to work on himself [and] to learn how he can not fall prey to [having been] sired so he can take control back over his life. It’s because of Klaus that Tyler even bit Caroline to begin with. In order to fight for her and fight for himself, he’s taking the time to learn how to not be controlled by Klaus.
”
- Candice Accola (Where’s Tyler? We haven’t seen him for a couple of episodes)