Matt GETTING MARRIED AT 56!

The actor, known for romancing a bevy of Hollywood beauties, is finally settling down.

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AFTER years of maintaining a reputation for being one of Hollywood’s most sought-after bachelors, Matt Dillon’s ready to make things official with longtime girlfriend Roberta Mastromichele, 45. “Every time Matt thought about marriage before Roberta, he got cold feet,” a confidant tells Star. “But she’s the kind of woman who’d walk alongside him and let him have space.”