Miley Cyrus has reportedly quit partying for her boyfriend Liam Hemsworth. According to reports, the Wrecking Ball hit-maker is now "very happy" living a more "low-key life".

"[Miley] is a changed person, and she actually seems to enjoy it," a source close to the songstress told People magazine.

After the 23-year-old and The Hunger Games actor rekindled their romance in December 2015, "it seemed she was just making changes to please him", the source said. But now, Cyrus is "very happy" living a more low-key life with the 26-year-old actor.

"Miley is doing yoga and seems very healthy. She rarely parties and is taking better care of herself," the source added.

The couple reportedly cancelled their wedding plans as the songstress was not sure if she wanted to get married at Hemsworth's home country of Australia, the news website revealed that the duo are currently living in adjacent homes in Malibu, California.

"[She] is still erratic about with her decision-making," a source previously told Us Weekly. "Miley just decided she didn't want to go there anymore. They have yet to pick a new locale," the source added.

In March, it was reported that the actor had issued an ultimatum to the songstress stating it was "either him or marijuana".

"They recently had a huge fight. Liam told Miley he wants her to quit pot. He can't believe how often she gets high. Every day Liam comes home and the entire house reeks of weed. He's so annoyed. Miley still smokes a ton of pot and it drives Liam crazy," a source had told InTouch Weekly.

The couple started dating in June 2009 after coming together for the movie The Last Song. They got engaged in 2012, but ended their relationship in 2013.