Dr Phil and Robin McGraw to Divorce?

There are some rumours that are going around on the internet today that Dr Phil and Robin McGraw are set to Divorce after 31 years of marriage.
Dr Phil is known for his TV show in where he helps others in their lives, but could it be that he needs the help now? I guess at present this is just another celebrity rumour but in time the truth will unfold.
What do you think could this be true?
