The pair “are very much in sync,” the insider said, with a friend predicting East could soon propose to the songstress.
“He’s crazy about Miranda and she’s so smitten with him as well,” the friend shared. “Their friends can definitely see them getting engaged in the near future.”
“They love to play music together, drink, have fun and hang out,” the Lambert source noted.
“They have so much fun together," the insider added.
While good times may be a major part of the couple's relationship, a source said that East is always there for Lambert during more difficult days as well.
“He’s so attentive to her and is always playing her compliments," the source said. "They just balance each other out so well.”
The Lambert insider added that they believe the couple “could go the distance."
As for Lambert and East, they often gush about each other on social media, with Lambert recently sharing a heartfelt post wishing East a happy birthday.
"Thanks @andersoneast for inspiring me in so many ways," she wrote. "You are a light that could outshine the sun. I love making memories with you."
Rock & Roll Sundays and No Makeup Mondays. My favorite Bama boy turned 30 today. He owns the stage and he owns my heart. 💗Thanks @andersoneast for inspiring me in so many ways. You are a light that could outshine the sun. I love making memories with you. #burnincandlesatbothends #30somethings 📷: Tommy Barrett and #birthdayselfie And thank you to our friends @chrisstapleton @morganwithane @brent_cobb And @darienlake for making it such a special celebration #darienlakethemepark #rollercoasters&waterslides
Photo Credit: Instagram / @andersoneast