The Lord is after his lady!

Scott Disick has straightened up and "is on a mission to win Kourtney back for good," a source tells Us Weekly. The hard partying reality star "has really cleaned up his act" and "Kourtney is very encouraged to see how much he has been trying,” the source added.

The father-of-three already has his foot in the door - literally! - as he recently moved back into the Calabasas mansion the couple shared before they split.

"He’s in better health and better spirits. He has majorly cut back on his drinking," the insider noted. LD has also cut back on his paid club appearances, which were a huge source of tension between the pair, and instead has been focusing on making money by flipping houses.

The eldest Kardashian is so encouraged by her partner's good behavior, she's already thinking about more kids with him! “Kourtney wants to have another baby," the source revealed.

It was only a matter of time before they reconciled!