While many of the pop princess's fans have been scratching their heads over the reunion, especially so soon after Gomez, 21, was released from rehab for unknown treatment – and just as video has surfaced of Bieber, 20, acting defiant and swearing at his recent deposition – her family is also concerned.
"Selena has chosen Justin over her family in the past," a source tells PEOPLE. "They are disappointed about that." The source adds, "Her father has told her he doesn't like her spending time with him."
Not that this is the first time the couple have gotten back together after their initial breakup in November 2012. In early January, they were seen riding Segways in Bieber's Southern California neighborhood, and he later Instagrammed a photo of them hugging, tagged with the caption, "Love the way you look at me."
But this does mark the first time they've reunited since Justin's recent arrest, and subsequent scuffles with the law.