In February, Daily Mail Australia spotted Adam out hand-in-hand with Diana as they arrived at his co-star Trent Cray's 32nd birthday celebrations in Sydney.
“Adam and Diana are serious about each other and really hit it off,” a close friend revealed to the publication at the time.
“They want to keep their relationship under wraps and not bring too much attention to it because he is really starting to develop feelings for her.”
Diana, 21, was a Miss Universe Australia finalist in 2019, and currently works as a model. The blonde beauty is also studying to become a journalist.
Adam was also rumoured to have been dating Bachelor runner-up Bella Varelis, when they were spotted hanging out together in Sydney last year.
The 24-year-old spoke to The Wash at the time, and admitted that he and Bella had yet to hang out one-on-one.
“I’ve only seen her a few times – she’s very nice,” he added. “We’ve been out together with the rest of the group.”
Since appearing on The Bachelorette last year, Adam, who made it to Elly's final three, became a fan favourite thanks to his kindhearted nature.
"I came into this experience having never been in love before and sadly I have come out the other end still searching. However, what I have come out with is friends and memories for life," he wrote after he left the mansion.
And while he’s yet to come out and confirm his new romance with Diana, we really hope he’s found the love he’s been waiting for!