Fred also took to Instagram to show off his new relationship with the reality star, captioning a pic of the two: 'Out at the Art Red Hill opening with my gorgeous babe 💕💕💕'
And another one, writing: 'Movie night with my beautiful gal!'
Fans were quick to congratulate the couple, and showered Melissa with praise.
'Well done Melissa!!!Sounds like you've hit the jackpot at long last. Very happy for you ☺️' one fan wrote, with another adding: 'Congratulations melissa hope you both avery happy ❤❤'
Married At First Sight fan favourite's Melissa and John confirmed their split in March.
In a joint statement, they said: 'It has been a very difficult decision and it makes us both very sad to say we have decided to no longer continue as a couple.
'We still have the utmost respect for each other but have found significant differences in our lives and expectations in relationships.
'We have spoken at length about how to make it work and have been spending time with each other to let our relationship unfold but both agree it doesn't feel like it's going anywhere.
'We still care deeply for each other as friends and will never forget the incredible times we have had together.'