Paul is said to have fallen in love with Melissa after drinking her alcohol not far from her country house – before forming a romantic relationship with the owner.
And according to reports, the brunette beauty has been spotted numerous times in the peppered-haired TV show host’s Kent home as he prepares to enter a celebrity social ‘bubble’, d ‘Bake Off teams and competitors.
A source told The Sun: “Paul loves having Melissa around and they’ve been in very good company for each other on lockdown.
“When things started to calm down it was the obvious decision for her to be out there anymore and now it looks like she has actually moved in.
“Unfortunately, he’s going to be out for a good few weeks. But he and Melissa are really happy together.
Paul and Melissa were first linked in September of last year – just months after his split from Summer, who he dated for two years starting in 2017.
He was previously married to chef Alex Hollywood – who was drawn to the headlines because of his public clashes with Summer.
Meanwhile, plans are underway for The Great British Bake Off to continue this year despite the ongoing coronavirus pandemic.
The show is set to go on and everyone involved will enter a bubble while filming in Essex.
Judge Prue Leith is expected to return – despite being “at risk” for the COVID-19 virus due to her age of 80.
While host of the show, Noel Fielding, will be joined by new co-host Matt Lucas following the departure of Sandi Toksvig.