Katy Perry hasn't "heard from" Russell Brand since he sent her a text message saying he wanted a divorce and says she knows the "real truth" behind the split, but refuses to make it public.
Speaking in the new US issue of Vogue, Perry said: "He's a very smart man, a magical man and I was in love with him when I married him.
"Let's just say I haven't heard from him since he texted me saying he was divorcing me December 31, 2011."
Brand's text came just 14 months after he and Perry tied the knot and their split was made legal in July 2012.
Perry accepts their work commitments and especially her hectic schedule for her California Dreams Tour contributed to the failure of the marriage.
However, the 28-year-old singer has hinted there is more to the split than has been revealed, and has suggested 38-year-old Russell couldn't cope being married to a strong woman like her.
Katy said: "I have to claim my own responsibility in things. I do admit that I was on the road a lot. Although I invited him time and time again, and I tried to come home as much as I possibly could.
"At first when I met him he wanted an equal and I think a lot of times strong men do want an equal, but then they get that equal and they're like, 'I can't handle it.'
"He didn't like the atmosphere of me being the boss on tour. So that was really hurtful. I felt a lot of responsibility for it ending, but then I found out the real truth, which I can't necessarily disclose because I keep it locked in my safe for a rainy day.
"I let go and I was like, 'This isn't because of me; this is beyond me.' So I have moved on from that."
Since her marriage ended, Perry has been in a relationship with musician John Mayer, but that ended in March.
The Part of Me singer has confirmed their on/off romance is definitely "over" even though she is still "madly in love" with Mayer.
She revealed: "It's over. I was madly in love with him; I still am madly in love with him.
"All I can say about that relationship is that he's got a beautiful mind. Beautiful mind, tortured soul. I do have to figure out why I am attracted to these broken birds."