Max and Sports Illustrated star Nina apparently called time on their romance in the past few weeks, around the time The Wanted announced their break from the pop world.
Although there has been no official word on what happened, sources have said that Max was the one who ended things as he "wanted a fresh start".
A source told The Sun on Sunday: "It was hard for Max to dump Nina so soon after news broke that The Wanted are breaking up.
"But he is being optimistic. He is looking at it all as an opportunity for a fresh start. He's not one to get down in the dumps about things."
In October, Max officially confirmed he was dating Nina. He described her as "the most beautiful girl I've ever seen. She lights up the place and everyone loves her".
Two months later, Max and Nina enjoyed a romantic holiday together in Barbados.
They sailed sunbathed on a yacht, went scuba diving and looked seriously loved up as they took a stroll on the beach hand-in-hand.
Neither Max or Nina have commented about the split rumours on Twitter. Reveal has contacted Max's rep for a comment.
Meanwhile, last month Max spoke out about The Wanted's break, saying their "personal lives" drove them apart.
He added: "Over the past year there has been a lot of tension. We used to be such a brotherly pact, but it started to feel like it wasn't The Wanted any more."
Celebrity splits of 2014:
Copyright: WENN Apega