According to the Daily Mail, the couple have been dating for around two months but are preparing to be separated for ten months while Hoult films Mad Max 4 in Australia.
"It will be tough being away from Victoria but I hope she will visit me," Hoult is quoted as saying. "I also have family and friends coming to stay at certain points during filming, so I won't get too homesick."
Justice - who shot to fame alongside Jamie Lynn Spears in Zoey 101 - added that she hopes to visit Hoult but that she is "also busy" working on the upcoming season of her Nickelodeon series, which debuted earlier this year.
The couple were spotted together in London last week watching the tennis at Wimbledon.