“He trusts Jennifer, but there’s always a bit of jealousy when she’s surrounded by other A-listers, especially when he’s not there.”

While the evening was filled with laughter and celebration, it seems Affleck couldn’t shake his feelings of insecurity. “It’s not the first time Ben has felt this way, especially when she’s out without him,” the source added.

Despite the slight tension, those close to the couple say there’s no serious trouble in paradise. “Ben loves and supports Jennifer, but he’s human—there’s always a bit of jealousy in a relationship, especially when you’re married to someone as stunning and in-demand as J.Lo,” the insider explained.

Lopez, for her part, is said to be aware of Affleck’s feelings but is standing firm in her independence. “Jennifer has a tight-knit circle of friends, and she enjoys celebrating with them. She’s always careful to balance her social life with her relationship, but she won’t let jealousy come between them.”