Keith Urban's Inner Circle Fears He's Having 'Midlife Crisis' Due To Strange Decisions Before Nicole Kidman Split

Reports that there may be more going on in Keith Urban's personal life have surfaced following his split from Nicole Kidman.

The singer has yet to comment on the split, but individuals in his inner circle reportedly believe he may be facing a midlife crisis, given a string of surprising decisions he made before ending his relationship with his wife.

Since the breakup, Keith Urban has returned to the stage, while Nicole Kidman has been spotted publicly spending time with her sister, Antonia.

In the wake of Keith Urban and Nicole Kidman's split, the singer's recent decisions since the beginning of the year have come under scrutiny.

Sources close to him are now saying that Urban may be going through a midlife crisis, a notion that Kidman reportedly shares, according to TMZ.

One insider cited how the "Blue Ain't Your Color" crooner allegedly made the shocking decision to fire his entire band back in January.

Urban had performed with the group for 25 years, making the move especially surprising to those closest to him.

Now, even more unexpected was his decision to end his marriage to Kidman, whom he had been with for 19 years and with whom he shares two children.

The split reportedly happened despite Kidman's reluctance to separate, and Urban has since gone as far as renting a new residence outside their Nashville home.

Despite his personal issues, Urban remains on tour and was back on stage at the Giant Center in Hershey, Pennsylvania, just days after Kidman's divorce filing.

However, there were several noticeable changes that suggested the singer is already coming to terms with the split.

Most strikingly, Urban performed without his wedding band, although it's unclear when he officially stopped wearing the piece of jewelry.

He also altered the lyrics of "You'll Think of Me" during the show, which appeared to be an emotional reflection on his separation.

While performing the song, he chose to insert the expletive "bullsh-t" right before the word "reasons" in the line, "take your space and take your reasons."

Still, the singer showed he held care in his heart for Kidman by displaying a slideshow of her and their daughters, Sunday Rose and Faith Margaret, during his performance of "Heart Like a Hometown."

Meanwhile, Kidman appears not to be taking the path of isolating herself to mourn the end of her marriage.

Just one day after filing for divorce, she was spotted hiking in Nashville sans her wedding ring, per the Daily Mail.

The actress was out with her younger sister, Antonia, and both were dressed in comfortable wear suitable for the activity.

The duo walked a trail not far from the $4 million mansion Kidman owns with Urban and appeared to be deep in conversation throughout the outing.

Antonia's presence also comes as no surprise, as earlier reports have described her as a strong source of support for the actress amid the split.

"Kidman is finding comfort in family at this time, the source shared, per People Magazine. Nicole's sister [Antonia] has been a rock, and the entire Kidman family has come together to support one another."

For now, neither Urban nor Kidman has addressed their split publicly or through their representatives. However, speculation has swirled regarding the reason for the breakup, with some claiming that Urban may have stepped out during the marriage.

Urban's guitarist, Maggie Baugh, was also linked to rumors of being the other woman, though her father, Chuck Baugh, has since denied the claims.

Additionally, some insiders have suggested that Urban was the one who called it quits because he was not thrilled with Kidman's career gaining momentum once again.

"[Nicole] truly thrived working again," a source said about the actress, per People Magazine. "She's been feeling amazing and very happy about having a career again.

They added, "Keith was used to her being supportive of his career. He's not been as supportive as she hoped."

Although it is unclear when the divorce will be finalized, the pair has already agreed on how they will co-parent their children.

When filing for divorce, Kidman submitted a marital dissolution agreement that includes a parenting plan, a child support plan, and a "parenting seminar order."

The document was signed by both parties, and a part states that their children will spend 306 days of the year with Kidman and 59 days with Urban.