Bill and Melinda Gates sent shockwaves around the world with the announcement that they weredivorcingafter 27 years of marriage.

For those that know the couple, however, the split isn’t surprising.

Some have speculated that the timing is directly related to their youngest child turning 18.

Bill and Melinda Gates speaking

“They limped through until their kids were out of school like a lot of people.”

One reason for the split reportedly stems from Bill’s treatment of his wife.

“He could have treated Melinda better,” a source toldPeople.

Bill and Melinda Gates

“He’s not a saint, but there isn’t one thing that created the final split.

It goes deeper than that.”

“He is close to her.