The on-off couple were apparently spotted smooching at a party last week, The Sun said.
They had a high-profile romance but broke up in February of last year, saying they were both too young and had hectic work schedules.
Lee's said in the past: "It's the pressure of this business. I do love Liz, she's wicked."
And now it seems that it might be true.
Let's hope they can make it last this time.