By Niamh Spence I’m A Celebrity winner Sam Thompson has sparked rumours that his relationship with girlfriend Zara McDermott might have reached a new milestone. The couple, who have been dating since 2019, have shared a sweet Christmas snap to Instagram as they posed in front of their Christmas tree. Yet this festive picture hasn’t just shown the couple in their Christmas Day outfits, as due to Zara hiding her hand and her ring finger its left fans wondering if Sam could have popped the question and proposed to Zara. Sam shared the snap of the happy couple to his Instagram, as he wrote: “Beaut…