The new couple received a flurry of messages sending love and congratulations in the comments.
"He's the real winner you're flawless," one follower penned.
"You two!!! Gorgeous couple," exclaimed another.
"It always works out in the end," mused a third.
Maddy opened up about her new relationship with Hit network radio hosts Jimmy and Nath last week adding that she's "loved-up now."
"We have known each other for about six years and we went on a date six years ago and we didn't click at all," she explained on-air.
"Then we caught back up and this time something just clicked and it feels right."
Maddy isn't the only 2020 contestant to find love after filming wrapped - Nicole Campbell also debuted her new man just a day after her final episode aired.
The former Bachelor star, who made it to the top eight contestants, also remarked on Locky and his chosen winner Irena saying that she "can't see them getting married".
"Locky had all these girls' attention inside the mansion," she said.
"It would be really hard to go back to life just having one girl, don't you think?"
Locky was recently forced to deny break up rumours when he shared a photo of himself promoting a Perth accommodation business without Irena.
In a response to a concerned commenter, the 2020 Bachelor penned: “We are better than ever.”
Since the finale aired, eagle-eyed fans have also noticed that Locky has removed any reference to his time on The Bachelor from his official Instagram bio.
While he had previously referred to himself as the 2020 Bachelor, he now only states he is an “Adventurer” from Perth and includes links to his travel business.