Miley Cyrus' Ex Liam Hemsworth Not Surprised By 'Wrecking Ball' Singer's Hook Up With Stella Maxwell; 'Hunger Games' Actor Too Busy To Care?

"Hunger Games" actor Liam Hemsworth reportedly already knows about Miley Cyrus' relationship with model Stella Maxwell but he only wishes her ex-fiancee luck.

"He is aware and nothing surprises him anymore with Miley but he is not heartbroken, he has moved on but he is aware of the hookup," a source told Hollywood Life.

The article when on to add that the "Wrecking Ball" singer brought the Victoria's Secret model to meet the family and "they really like her."

It said, "Her parents are both on board because they see how happy Stella is making her. They're happy that she's happy, and that's all that matters to them."

In her interview for Paper magazine, Miley Cyrus has admitted that she's bisexual.

"I don't relate to being boy or girl, and I don't have to have my partner relate to boy or girl," she said, adding that she had serious hookups with both men and women.

"I've had that but people never really looked at it, and I never brought it into the spotlight," the "Wrecking Ball" singer said.

But her being bisexual wasn't the reason why Miley Cyrus and Liam Hemsworth broke up, said the article.

The source alleged, "It didn't contribute to the split. Immaturity, family planning and career goals were the main reasons for the break up. There were a lot of arguments based on starting a family, careers and how to co-exist as celebrities. Sex and who Miley wanted was never really an issue."

V magazine reported that Victoria's Secret model Stella Maxwell met Miley Cyrus started hanging out in March, before the "Wrecking Ball" singer broke up with Patrick Schwarzenegger, after they met through Cyrus' assistant Cheyne Thomas.

Liam Hemsworth's ex Miley Cyrus and Victoria's Secret model Stella Maxwell were snapped kissing on the set of the "Wrecking Ball" singer's upcoming music video.