AceShowbiz - Adele and Paul Rich remain strong after dating for nearly two years, but their relationship is allegedly not built on solid ground. The singer's inner circle has reportedly expressed concerns that he will leave her heartbroken when he'll just leave her one day as they question his genuine intention in dating her.

"Rich is a very charming, influential guy," a source tells Radar Online of the sports agent. "But the worry is he's using Adele to boost his Hollywood profile and it'll all end in tears once he's gotten bored with her."

"Before they went public, hardly anyone had heard of the guy," the so-called insider argues. "Now he's front and center at all the big events, soaking up the limelight and encouraging her to get out there and party alongside him."

Another informant claims Paul has smitten Adele "eating out of the palm of his hand," but confidants are concerned "one day he'll just take off and move on to his next conquest."

Recently, Adele reportedly sparked concern among her friends with her party lifestyle and booze binges and now it's said that they worry Paul is a "questionable influence," who's "sucked her into this splashy, flashy environment."

Adele recently fueled engagement rumors as she flashed a ring on that finger during a dinner date in Los Angeles with Paul. The site confirms the engagement news, adding that the British songbird is pushing for a summer wedding.

"If Adele had her way they'd be married already," a pal previously spilled to the outlet. "She's begged Rich to elope on countless occasions, and now has set her heart on doing it in Las Vegas sooner than later."

The so-called insider said at one point Adele was ready to give him an ultimatum, "Marry me or move on!" It seems that Paul finally came to his senses, although the source said at the time he "would prefer to take more time." The source went on noting, "But at the end of the day, Adele's the boss and gets what she wants."