After star Liv Hawkins claimed that Grace had messaged another islander claiming that she would "do anything to win", Mitch shared a screenshot of the alleged conversation on his Snapchat with the caption: "I don't know who the receipts are from, I got sent it loads all I know is Casey and Gabby won.".
The pair won the first series of Love Island : All Stars on ITV2 last year and have stayed together ever since, with the couple buying their first home together just months after winning the show in February.
However, Tom and Molly were also spotted out with Mitch Taylor, who was accused of trying to "sabotage" Luca Bish and Grace Jackson's bid to win just days before the All Stars final.
"Molly is really great and very hands on with the renovating," Tom said, while Molly added: "I actually take the time to read instructions!".
Love Island: All Stars winner Tom Clare has fuelled rumours that he'll be proposing to girlfriend Molly Smith with his latest comments about their thriving relationship.