Bruce Willis believes he will die a bachelor - because he can't commit to one woman.

The 'Die Hard' star - who has had a string of failed romances since splitting from ex-wife Demi Moore in 2000 - thinks he will be single for the rest of the days because he's so bad at relationships.

He said: "I'm going to go out a bachelor. Truth is, I have doubts about my ability to maintain a relationship necessary for a marriage to work."

"If I know anything about myself, I know that."

Earlier this year, Willis confessed he dreams of having more children.

The 50-year-old - who has three daughters from his marriage to Moore - told 'Access Hollywood': "I want to have more kids."

Willis, who previously admitted he isn't sure if he wants to tie the knot again, also insists he is still a good catch.

He said: "I've got a great sense of humor and it's still all working, working well."

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