Selena Gomez has been forced to spend time away from her boyfriend, Justin Bieber, in recent weeks and apparently, she's quite upset about having to be so far away from home.

According to a new report, Gomez is missing Bieber quite a lot as she continues to spend time in London and other locations around the globe.

“Selena has been a bit bummed since her time out of the states and away from Justin. She misses him dearly and the time apart has helped her realize how important he is to her,” a source close to Gomez explained to Hollywood Life on Dec. 4.

Gomez and Bieber rekindled their previously troubled relationship in October of this year as her relationship with The Weeknd came to an end and ever since, the couple has been frequently photographed together. However, in recent weeks, they've been spending less time together than they did immediately after their initial reunion

Most recently, after enjoying time with her family in Texas, Gomez reunited in Los Angeles with Bieber, where he was spotted serenading her at the hotel bar of the Montage Hotel in Beverly Hills.

Although things between Gomez and Bieber appeared to be heating up quick, the Hollywood Life source said that Gomez did recently pull back just a bit.

“Selena felt the need to pull back a little but that has only made things more clear in her mind. Selena has a strong love and bond for Justin. She wanted alone time, got it, and it was what she needed. It has helped her learn about herself and how much Justin means to her. She genuinely misses him and is can’t wait to get back to him,” the insider added.

Gomez shared a post on Instagram earlier this week in which she told her many fans and followers that she needed some alone time. While she didn't reveal what the alone time was in reference to, many assumed she was speaking of her new relationship with Bieber and feeling a bit overwhelmed.

As fans of Gomez will recall, she's had a rough year. In addition to her breakup with The Weeknd, Gomez endured a kidney transplant earlier this year after her friend Francia Raisa offered to be her donor. Gomez first confirmed the surgery on her Instagram page and shared an image of herself and Raisa in the hospital together.