Another one (possibly two) bites the dust

From MSN.com:

The New York Daily News claims the "One Tree Hill" lovebirds, who are both 23, are on the verge of implosion a mere three months after tying the knot in a romantic seaside ceremony. "The marriage is all but done," an insider insists to the paper. "They are separated, and she is going to file for divorce imminently."

Not so, counters Bush's rep, who asserts to MSN Entertainment, "They are not separated." (Murray's mouthpiece tells us she doesn't comment on his personal life.)

The pulchritudinous pair, who met on the set of their WB drama, had been dating less than a year when Murray slipped an emerald-cut, pink and blue diamond-encrusted ring he helped design on Bush's finger. Before getting down on one knee, he reportedly filled their penthouse suite with hundreds of candles and dozens of roses and spelled out a romantic message in lights on the hotel's tennis court (the sentiment remains a secret). "It's a really, really important moment for a woman, so I wanted to do what I could do to make it special," Murray said of his elaborate question-popping.

The co-stars' April 16 nuptials took place beneath a rose-festooned altar at a hotel in Santa Monica, with Sophia tearfully telling an equally weepy Chad, "I feel safest when I'm in your arms." The actor later called the wedding "the best day of my life."

And in more not-so-surprising news...Renee Zellwegger and her country-hubby may be on the rocks as well.

From E! Online's Teddy-Bear Casablancas:

And that, my little sourpusses, sure includes the rumor that Renée Zellweger is breaking up with musician Kenny Chesney, whom R.Z. married, like, what, 15 minutes ago?

"I don't know anything about it," said Renée's flack, sweeter than pie, "I just saw her, and I'm sure it's not true."

Nevertheless, whether it's fueled by Chesney freakazoid fans (who've never made a secret of their displeasure over the terrifically blessed K. marrying the Oscar winner), sources from Chesney's hood--i.e., the music biz--are putting it out that the couple is busting up.

So glad to hear it ain't true. It's not, right, Renée?