Now that Robin Thicke and his wife Paula Patton announced they were separating, Us Weekly is reporting that the split was a long time coming and that their marriage got even worse after Robin’s performance with Miley Cyrus at the 2013 MTV VMAs.

A source told us:"The Miley Cyrus fiasco was a big test of their relationship. He asked her to help him out as a friend and a wife, and defend him and the performance. He begged her to speak out for him and be there for him. She agreed to be the good wife after he begged and pleaded. Then he asked her to stick with him through awards season, and she agreed. She attended the Grammys with him as a favor. Their marriage was unraveling a long time.

"It is not a shock to Robin or Paula, and it is something they have discussed for a long time."

Source: Yahoo!