"Justin was one of the first people she saw when she got out of rehab," the source said. "He was very supportive of her taking care of her health. In the past, it was always Selena pushing Justin to take care of himself, like by introducing him to Hillsong [Church]. Now, it's his turn to push her to take care of herself."
"They've both matured and have very different priorities," the source added about how their relationship has changed the second time around. "Justin isn't interested in partying and Selena is much more confident, and isn't afraid to put her needs ahead of anyone else's. They've done the fame thing for so long, now they just want to work on quality projects and live a low-key life."
Watch the video below for more on Gomez and Bieber's relationship.