Hailey Baldwin seemed to have won over the heart of Shawn Mendes at the end of last year, but has their romance already come to an end?

Throughout the past few months, Baldwin and Mendes have been facing rumors of a romance, but despite their many PDA outings together, they haven't confirmed a thing. Meanwhile, after Mendes was spotted enjoying on what appeared to be a dinner date with Camila Cabello, he's now facing claims of a relationship with her — and a possible love triangle with Baldwin.

On Jan. 31, Hollywood Life shared a report regarding the recent rumors surrounding Mendes and Cabello, formerly of Fifth Harmony, and revealed that because Baldwin recently shared a tweet that referenced Cabello, many fans think they are feuding over the singer.

As the outlet revealed, Baldwin responded to a post about the GUESS campaigns of Anna Nicole Smith and Cabello, slamming W magazine for leaving her out of an article about the many celebrities who have posed for the brand.

“Let's just pretend [Hailey Baldwin]’s four consecutive campaigns never happened," Baldwin sarcastically tweeted.

Although Baldwin's tweet didn't directly take aim at Cabello, many fans assumed that it did and suggested that her alleged anger toward Cabello stemmed from Cabello's possible romance with Mendes.

Baldwin and Mendes were first linked to each other last fall, and over the Halloween holiday, they celebrated the event with a party in Los Angeles. Since then, they have been seen together in Los Angeles and in Canada, where they didn't hesitate to hold hands and wrap their arms around each other.

Following the Halloween party in Los Angeles, a source told Hollywood Life that Mendes and Baldwin were “inseparable” throughout the night.

“He was holding her hand and putting his hand on her lower back to guide her through the party,” the insider said. “He was very comfortable showing her affection and she loved the attention, looking at him adoringly. He had his arm wrapped around her, keeping her close. At the end of the night, he took her by the hand and they left together.”

A short time later, while ringing in the New Year in Miami, Baldwin sparked rumors of a possible engagement when she hit the beach wearing what appeared to be a diamond ring on her left hand ring finger.