Life & Style can reveal that The Voice coach, 36, and country sweetheart, 29, will spend at least 71 days apart over the course of the next few months.
"This summer is the first time they have been apart for so long," an insider tells the new issue of Life & Style, on stands now. "They get jealous of who the other is spending time with."
While Miranda's busy on her Locked & Reloaded tour, which kicked off May 9, Blake's time will be occupied with live Voice tapings. He also has 153 work commitments!
This year has already proven to be a tough one for the duo. As Life & Style previously reported, Blake got flirty with singer Cady Groves in 2011 - something that will always be in the back of Miranda's mind.
"Since the Cady scandal, they've done a lot to work on their relationship," admits an insider. "But Miranda knows she can't change Blake. Being a flirt is in his DNA."
Though Miranda, who married Blake in May 2011, has said that they do not go more than two weeks without seeing each other, Blake admits that would fail if she didn't make it happen.
He says, "If it wasn't for her, we probably wouldn't be able to keep that promise."
For more inside Blake and Miranda's relationship, pick up the new issue of Life & Style, on stands now.