Miley Cyrus and Liam Hemsworth are set to finally tie the knot by the end of summer. However, rumors have been flying around about Miley Cyrus being worried about Liam's behavior. News is, Miley is worried her Aussie fiancée would cheat on her on another blonde beauty, Emma Roberts. How true are the rumors?

Liam Hemsworth and Miley Cyrus have had a rough relationship in the past. For three years, the couple has been on an on-off and on again relationship. Yet, even with the rocky relationship, the two have managed to decide on marriage. Last May 31, the couple shocked family, friends and fans with the news of their engagement.

Despite relationship advice columnists saying the engagement and marriage is unlikely to work out Miley and Liam have turned a deaf ear. Both are still dead serious on the marriage and plans of tying the knot are set out by the end of summer. However, it looks as if problems have already risen up and to think they haven't even said "I Do".

Liam Hemsworth has been rumored to have cheated on Miley Cyrus with another blonde. Who would this blonde beauty be? Well, none other than Emma Roberts. According to The Enquirer, Liam had been spending an awful amount of time with Roberts. Ironically, just recently Roberts has been said to be dating Evan Peters. Is Emma Roberts really that swift of a lady killer moving from one target to the next? Upon finding out about Roberts and Hemsworth's budding romance, Miley allegedly warned both Liam and Roberts.

"Miley's become super-protective since she and Liam got engaged. She's worried that while he's off making movies with hot women, he'll be tempted to cheat. And it didn't help that Emma showed up on set declaring that she is sin gle and ready to mingle," said source to The Enquirer. More or less, Miley had scolded Emma Roberts, "Hands off my man!" What did Emma Roberts say to this drama?

"She couldn't care less what Miley thinks. She makes fun of Miley behind her back, saying she's just a washed-up tween star. Emma feels she has nothing to lose, so she's pushing it as far as she can with Liam. And he's definitely enjoying the attention," explained the source.

Well, with all the drama and rumors surrounding the couple plus Emma Roberts, would the marriage really push through by the end of summer? Or is it goodbye Miley Cyrus and hello Emma Roberts?

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