“Justin and Selena still spend a lot of time together, but are being low-key about it,” a source tells PEOPLE about their reconciliation

Though they have yet to confirm their relationship status, Justin Bieber and Selena Gomez have been seeing each other almost every day, a source tells PEOPLE.

“Justin and Selena are great. They still spend a lot of time together, but are being low-key about it,” the source says. “They attend church service together, have dinner and just hang out.”

In November, the pair’s multiple public outings included going to church together twice in one day, attending one of Bieber’s hockey games, and taking a leisurely bike ride together.

“[Justin] is set on proving that he is a better boyfriend,” the source added.

However, with Christmas fast approaching, the pair will be going their separate ways to spend the holiday with their respective families.

“Justin’s family always loved Selena, but Selena’s family is still not happy about her seeing Justin,” the source explains. “Selena doesn’t bring Justin to any family events. Selena is spending Christmas with her family. As of now, Justin is not invited.”

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The former couple, who dated on-and-off from 2010 to 2015, has been fueling relationship reconciliation rumors while spending time together in the wake of Gomez’s split from The Weeknd.

Multiple sources previously told PEOPLE that Bieber and Gomez are still not officially back together and are focused on taking a more low-key approach to their relationship.

“They just backed off a little from being out there and are being a bit more low-key,” an insider shared with PEOPLE in November, adding that Bieber, 23, and Gomez, 25, are still not officially boyfriend/girlfriend yet “but it’s getting close.”

In fact, Gomez has never been able to get over her first love.

“Justin was Selena’s first love. He will always have a special place in her heart,” a separate source said. “She’s always held out hope that one day the circumstances and timing would be right.”

Also last month, Gomez briefly explained her reunion with Bieber to Billboard. “I’m 25. I’m not 18, or 19, or 20,” she said. “I cherish people who have really impacted my life. So maybe before, it could have been forcing something that wasn’t right. But that doesn’t mean caring for someone ever goes away.”

And on Saturday, Bieber’s mother, Pattie Mallette, raved about Gomez to PEOPLE, saying, “I don’t know so much about their personal relationship because [Justin] doesn’t share a whole lot, but I love her. I support anything [he does], if he loves her I love her, and I’ve met her and we have a special bond so I think she’s precious.”