Hailey Bieber has recently expressed her concerns over her husband Justin Bieber’s erratic behaviour.

A source spilled to RadarOnline.com that the Baby crooner’s obsession with guns has made her worried, even taking a toll on their six-year marriage.

The singer reportedly sparked alarm bells after he posted images of himself featuring rifles, shotguns and handguns.

“Justin’s started collecting guns and his big new passion is firing them on the practice range or some remote spot in the wilderness,” said an insider.

The source told the outlet that Justin has “constantly obsessing over the next guns”.

Interestingly, Justin’s bizarre photos, angry outbursts with the paparazzi had raised questions about his mental stability.

An insider noted, “Hailey is nervous about his fascination with firearms and trying to get him to find something else to entertain himself with.”

“But there’s not much she can do besides keep an eye on him. If she pushes too hard, he sulks and quits talking to her or posts another angry diatribe,” explained a source.

Meanwhile, an insider added, “Justin’s a good shot, the problem is he thinks in extremes and makes it the focus of his life. It’s not sitting well with people.”