It comes after pals opened up on the distance between the couple proving a struggle
The ITV2 show stars split for the second time earlier this month, with pals claiming the “distance was difficult” between their bases in Essex and Wales.
Fans were quick to call out the key signs of their break-up, with the pair seen awkwardly discussing their wedding plans prior to calling time on their love.
Former ASOS buyer Millie, 28, returned to social media last week and has now posted a sizzling snap showing her in matching summery swimwear.
She flashed her glowing tan in the beach-wear, which featured leopard-print panelling as well as pink and orange stripes.
Millie tied her bikini bottoms high on her hips to elongate her legs and made sure her make-up was on point.