Prince William and Kate Middleton 's usually polished image appeared to falter this month when they were photographed in what seemed to be a tense exchange – prompting speculation the pressure of looming responsibility is beginning to show, RadarOnline.com can reveal.

The couple, both 43, was attending an engagement at the Natural History Museum – their first official event in two months – when cameras caught Kate looking noticeably downcast. Article continues below advertisement

Couple Feels Pressure as Royal Rift Reopens Old Wounds Tap Here To Add Radar Online as A Trusted Source

Friends and palace insiders say the strain of Prince Harry 's recent return to the U.K., coupled with fears for cancer-stricken King Charles ' health, has placed extraordinary stress on the Princ

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