The apparent drama between Madonna and her son Rocco Ritchie continues ...

On Dec. 25, the singer shared a sweet throwback photo with her boy, including the message: "Merry X-mas to the Sun-shine of my Life!"

This after the 15-year-old refused a judge's order to fly back from London, where he's been staying with his father Guy Ritchie and his new wife Jaqui Ainsley.

On Dec. 23, Madge had Manhattan Supreme Court Justice Deborah Kaplan make the decision for Rocco to return to New York, but his lawyer Eric Buckley said that he had "expressed very clearly" that's not what he wanted.

The #TBT appears to be a dose of nostalgia from Madonna after not spending Christmas with her youngster.

But he seemed to be having a good time in London over the holidays, sharing video of himself skateboarding around the city on his recently made private Instagram.

So where did the feud begin?

Rocco had been working backstage on his mom's Rebel Heart Tour over the summer, but abruptly decided to leave and go stay with Guy.

The only noticeable possible annoyance was a couple of strange, embarrassing Instagram pictures she shared of her son earlier in the year.

In September, Madonna posted a video of Rocco in his bathing suit with the quite inappropriate caption: "Rocco's preferred profile #nosausage."

Rocco"s preferred profile #nosausage

A post shared by Madonna (@madonna) on

And then there was this goofy shot of him in pigtails ...

Blonde Ambition! 👑. ❤️#rebelhearttour

A post shared by Madonna (@madonna) on

We still can't be sure what exactly spurred the recent custody battle over Rocco between Madonna and Guy Ritchie, who split back in 2008. And there's been no comment from either of their camps yet.

But it's clear that the "Material Girl" singer wants to see her son.