Following their romantic trip to Canada, it appears that there's truth to Selena Gomez and Justin Bieber back together news. This time around, the "Baby" crooner is reportedly doing his best to regain his lady love's trust.

Bieber reportedly promised to give Gomez a "100% monogamous relationship" and swore not to see or date other girls. "Selena is feeling stronger than ever and more secure than ever in her relationship with Justin," claimed one source to Hollywood Life.

Last September 6, the two were spotted kissing at Holt Renfrew, a department store in Toronto, Canada.

Despite Bieber's womanizing records, the "Wizards of Waverly Place" actress is prepared to accept his beau back.

 "Obviously she can't control his every move, like whether or not he's still texting certain old flames, but she trusts his word. It's like she has him wrapped around her finger. She definitely has the upper hand," added the source to the publication.

Selena Gomez and Justin Bieber started dating in 2010. Their on-off relationship recently ended allegedly because of the "Pray" singer's flirtation with Kylie Jenner at the Coachella Valley Music and Arts Festival.

Meanwhile, Taylor Swift remains silent about Selena Gomez and Justin Bieber back together news. The "Shake It Off" songstress had a feud with Gomez because of her turbulent romance with Bieber.

When the couple recently parted ways, Swift was reportedly "relieved" and at the same time proud of her best friend for finally coming to her senses. Now that Gomez and Bieber has reunited, will it similarly reignite the gap between Swift and Gomez?