Tinsley Wharton was a student at Vanderbilt Prep in New York City, alongside Bobby, Declan, and formerly Fiona. She is described as being extremely flirtatious, and is known to be "the other woman" in a relationship.
In Try Honesty (1), it looked like Tinsley was messing with Declan, who at the time, was in a committed relationship with his girlfriend, Holly J. Sinclair. On Declan's profile, there were several pictures of him and Tinsley together. In one picture, Tinsley was kissing Declan on the cheek.
Tinsley's profile stated she was single, but 'never for long', implying she was going to chase after Declan. Holly J. thought Tinsley was the reason why Declan was supposedly cheating on her.
In Chasing Pavements (1), Tinsley went with Bobby to his and Fiona's trial. She came as a witness, at first backing up Bobby. However, when asked if she had experienced his violence, she hesitated, and then admitted that he slapped her one night at a party. As a result, Tinsley helped Fiona win the case, and acknowledged Fiona's appreciation.
