Pop superstar Justin Bieber and his model wife Hailey Bieber were spotted spending time apart in Los Angeles on Friday, fuelling ongoing speculation about the state of their marriage and recent reports of financial strain.According to the latest report on TMZ, Justin was seen enjoying a casual outing in West Hollywood with a friend, dressed comfortably in a red hoodie and baggy black sweatpants. Unlike his previous outbursts at the paparazzi, the singer appeared relaxed and didn’t attempt to hide from the paparazzi. While recent footage of the star saw him lashing out at the cameramen for taking his photos, this time around, he was seen walking with his hood down.Hailey, on the other hand, opted for a more low-key evening, stepping out with friend Lori Harvey at a trendy Beverly Hills restaurant. Unlike Justin, the beauty kept a noticeably lower profile, using her phone to shield her face from cameras as she made her way to her car. The couple’s separate outings come in the wake of renewed public interest in their personal lives, following the release of the new Hulu documentary ‘TMZ Investigates: What Happened to Justin Bieber?’. The film explores the singer’s ongoing mental health battles and recent financial troubles, including his decision to sell his music catalogue for a reported $200 million, a move insiders suggest was driven by urgent financial needs.While Friday’s solo appearances may be innocuous, they’re bound to keep fans speculating. The couple seemed to have rubbished divorce rumours when Justin posted a video of his sweet Mother’s Day celebrations for Hailey at their home. The hunk not only set up a dreamy dinner but also called in a Mariachi band to serenade his wife with some popular tunes. He was also seen spending time away with his friends at one of his many homes around the country. Photos from his private getaway saw him engaging in jam sessions, which had fans hopeful of some new and exciting music release.