- You may be looking for Nick from Evening's Empire.
Nick was a customer at ELF Storage in Manchester. He encountered the Thirteenth Doctor, Yasmin Khan and Dan Lewis after he and Sarah were stuck in a time loop with several Dalek Executioners on New Year's Eve 2021.
Nick was the only customer at ELF Storage in Manchester. He stored his ex-girlfriends' belongings every time and always visited on New Year's Eve. After the TARDIS landed at the basement of ELF Storage following the Thirteenth Doctor resetting the TARDIS after the Flux, Nick along with Sarah were stuck in a time loop.
Nick had kept so many of his partners' belongings that he was accused of being creepy, and a serial killer. He had a crush on Sarah over three years, but was too shy to tell her. Nick aimed to be chivalrous, but had to practice talking to people. (TV: Eve of the Daleks)