AceShowbiz -

Miranda Lambert was among the biggest winners at Academy Country Music Awards on Sunday, April 2. The "Vice" hitmaker walked away with two trophies, including Album of the Year Award for "The Weight of These Wings". Although her ex-husband, Blake Shelton, is happy for her success, it seems that he's a little bit concerned about his ex-wife writing songs which are inspired by their past relationship.

"Blake [Shelton] is genuinely happy for all of Miranda [Lambert]'s success," a source told HollywoodLife.com. "Blake is not surprised at all that Miranda wrote so many hit songs about her heartbreak because their marriage was full of passion, drinking and love. All the things that make for great country song."

The source continued, "Blake is relieved to have moved on from the most challenging time in his life, but he worries that Miranda has enough material to write several more albums about their time together. Blake is hoping that Miranda finds new inspiration for her music and that she doesn't spend the rest of her life singing about him."

Miranda and Blake ended their marriage in 2015 after four years of marriage. Their split shocked fans as they were considered the king and the queen of country music. Miranda claimed that she had grown as a songwriter thanks to the hard times in her life, which included the divorce. Back in 2016, she said, "You run to things more and you lean on things more than you normally do when you're hurting. I was off last summer, and a really positive that came out of the hard time in my life was that I grew as a songwriter."

However, both Miranda and Blake seem to have moved on from each other. Blake is currently dating fellow judge on "The Voice", Gwen Stefani, while Miranda is making music together with her boyfriend, singer Anderson East.