WHOA! This is big! We just realized the reason Hailey's been leaving church separate from Justin every Wednesday and why the married couple hasn't been together too much as of late ... they're living apart!

Or at least they might be ...

We spotted Hailey Baldwin leaving the Montage Beverly Hills on Friday without Justin -- which is normal, because even though the couple owns a residence at the luxe hotel, they don't live there anymore since they bought their first home together just a few miles away.

We've seen Justin in and out of the new manse plenty of times recently, but Hailey's been M.I.A.! The supermodel stepped out in an all-white look the other day -- an oversized boyfriend button-down over a white tank and mini-skirt that showed off her long legs. She hopped in her old Range Rover (NOT the couple's Lamborghini Urus that they take when they're together), and she spend off to a meeting.

Meanwhile, Justin's been getting some kind of intravenous therapy -- to help with a weak immune system and with his anxiety, we suspect. He's been at a Cedars Sinai-affiliated clinic multiples times a week, leaving with his IV fluid back on one arm, with a tube connected to his other arm, receiving a constant flow of liquid. WHAT IS UP?!

Even with a VIP airport security escort, Kristen Stewart couldn't help but get caught in a tourist maelstrom at LAX over the weekend.

The actress was returning from the San Sebastian Film Festival in Spain where she screened her new film Seberg about Jean Seberg's life including being investigated by the FBI for sympathizing with the Black Panthers and eventually dying in a mysterious suicide. Sounds really good but we can't seem to find the trailer online anywhere, which is weird. Some critics have panned it but everyone's pretty much in agreement that Stewart is amazing in the film. Hey, Amazon Studios! Get some clips out there so we can see KStew take on this role!


Amazon Studios

Brad Pitt made a rare public appearance to see pal Ethan Coen's new play A Play Is A Poem at the Mark Taper Forum in Downtown Los Angeles, but something was noticeably absent during the outing ... a date!

Pitt went solo to the star celeb-attended show. Ethan Coen and his brother Joel -- the famous Coen Brothers directors -- led Brad in 2008's Burn After Reading. Of course Pitt's been busy promoting his own new project lately, Ad Astra, but he found time to support an old friend and see some amazing theater. And he wasn't the only one there to support ...

William H. Macy and his daughter Sofia -- despite Felicity Huffman's impending jail sentence -- enjoyed a father-daughter date night, along with some of her friends. Macy starred in the brothers' hit 1996 film Fargo. Dad and daughter looked pleased after the show but not at all interested in talking to the paparazzi ...


Josh Brolin was also in attendance which is no surprise -- he's starred in THREE Coen Brothers films: No Country For Old Men, Lleweyln Moss, and True Grit. These are ACTORS' actors, folks!

Miley Cyrus and Kaitlynn Carter are DONE! I mean, we all know Kait was a rebound relationship for Miley after splitting from hubby Liam Hemsworth so it's not that surprising. Question is now ... will Miley regret her decision to split from longtime love Liam and will she beg from him to come back?!

Miley performed at the iHeartRadio concert in Las Vegas Saturday night, accompanied by her mom Tish, while ex Kaitlynn posted to her Instagram Story, a video of her laying on her couch at home, wearing fuzzy slippers. Typical breakup position!

So will Miley go back to Liam? Will Kaitlynn try to win back ex Brody Jenner (even though he's been dating Jose Conseco's daughter Josie)?

Travis Scott has a few dollars ... so he went out and bought a Maybach-outfitted Mercedes G-Wagon for a cool $1.6 million!

Scott purchased the whip through Obi Okeke, also known as Dr. Bugatti. The exotic car arrived in white but Scott decided he wanted a retro inspired look and decided on a deep brown color. The rear has a retractable roof and only 99 of the cars were produced.

Gee, Trav ... flex much?

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Poor Justin!

We have NO IDEA what's going on, but Justin Bieber has an IV in his arm! The singer was back at a Cedars Sinai clinic in Beverly Hills Thursday after a visit just the day before and this time he left with an intravenous drip in his arm, connected to some kind of fluid in a bag he was carrying. What's this FOR?!

The night before, Justin and wife Hailey were at Hillsong service together, but left separately -- as they did the week before. What gives?! Are Justin and Hailey even living together???

Some people say Shawn Mendes and Camila Cabello's over-the-top PDA is a PR stunt just to get the two an INSANE amount of press coverage but the "Senorita" duo isn't havin' it!

Mendes denied these crazy rumors to a paparazzo at LAX, on Thursday, saying, "It's definitely not a publicity stunt." When asked if the two have used the "L" word yet, Shawn goes silent and eventually ends the impromptu interview with an, "All right, buddy, have a good one."

Meanwhile, we spotted Camila at the airport, too -- both jetting out of town on the same day, different times, different airport. Camila was headed to Las Vegas from Burbank Airport's Jet Suite X terminal and Shawn was headed south to Brazil from LAX.

Do YOU think these two could be faking it for PR?!

We've been on the lookout for these two for ages and we finally got a super-cute video of lovebirds Shawn Mendes and Camila Cabello together, holding hands after a coffee date at Verve in West Hollywood on Wednesday.

We ask about new music -- we didn't ask about how in love they are (mistake!) -- but Shawn and Camila instead ask a nearby fan where he's from and he answers "Brazil," to which both get really excited and Shawn says he's about to head down to Sao Paolo.

But anyway, the absolute best thing about this clip is the couple's smiling faces and Camila's cute laugh!