Since the couple split in February, Robin has made numerous public his pleas for his actress wife to take him back.
Speaking on live radio in New York City on Thursday, he told Hot 97 Radio Station: "I try to keep most of that private, but, I haven't seen her for four months."
Robin Thicke is spotted in NYC
Robin and Paula met when he was 14 and she was 15, and married in 2005. Rumours first swirled that their marriage was in trouble in August 2013 following Robin's controversial Blurred Lines performance with Miley Cyrus at the VMAs.
Reports followed that the singer had been unfaithful during a party that same month.
The singer's revelation about Paula this week came during a Q&A chat on Twitter with VH1.
Robin Thicke and wife Paula Patton
When he did respond to questions though, he only answered several which pertained to his music and the new album.
"Why didn't you write a whole album for her when you were WITH her?" one fan asked, to which he replied: "She's always been my muse only this time from a distance."