Credit: Rick Diamond/Getty Images

No hard feelings between LeAnn Rimes and ex-husband Dean Sheremet.

Shortly after exclusively announced Sheremet, 29, popped the question to fashion photographer Sarah Silver, his ex-wife congratulated the happy couple via Twitter.

"Congrats to @deansheremet and @sarah_silver on your engagement! A little birdie told me the happy news last night," Rimes, 28, tweeted Saturday. "Wishes for a life full of happiness."

Though several of Rimes' Twitter followers questioned the validity of her sentiments, she insists she's glad Sheremet has found love again.

"I'm really happy for their happiness. It's amazing to have that," she responded to one fan. "I mean it! I'm really happy for them," she told another.

According to a source, Sheremet proposed to Silver in their NYC apartment Friday while "they were having a nice morning together," adding that he and Silver are already "planning on a summer wedding in NYC."