Brad Pitt reportedly refuses to make an honest woman of Angelina Jolie because he has been scared off marriage by his painful divorce to Jennifer Aniston.

Hollywood's former golden couple Jennifer Aniston and Brad Pitt ended their five year marriage in 2005, paving the way for the reign of Brangelina and their growing brood.

But fans are still wondering why they haven't made it official?

An insider tells Life & Style, “Brad's divorce from Jen was painful. It was hard on on his parents and he considerts it a major failure in his life.

“His big excuse for not marrying Angelina is that he hates even the possibility of something like that happening again.”

And it seems the fans aren't the only ones who are wondering why Brad hasn't popped the question.

When asked about the subject Angelina retorted, “You'll have to ask Brad.”

See Brad and Angelina's family album here