4. Liam Hemsworth

One of Miley's most well-known ex, these two were on the set of a film and fell in love on the real world. After dating intermittently for more than a decade and a half, they finally decided to get married in the year 2018 and split up just seven months later. The marriage didn't go as planned despite the intense passion. The Aussie released a statement on IG: "Miley and I have recently separated and I wish her only well-being and happiness for the future."