Kristen Stewart is reportedly disappointed that Robert Pattinson has yet to fully forgive her for her publicized affair with "Snow White & Huntsman" director Rupert Sanders in July.

According to a Radard Online source, Pattinson, 26, is still undecided about moving forward completely from the betrayal despite all the time they have spent together since their reconciliation in September.

"Rob and Kristen are at a crossroads right now as to whether he finally accepts they are back together or not," the source told Radar Online. "The problem is, Rob is still dithering on what to do. I think Kristen is now at the stage where she feels it is time for him to get over her affair or perhaps move on."

"Kristen has been trying so hard to win Rob back, she's been hanging out with his friends and she even went to London to make a good impression with Rob's family over the Thanksgiving holiday," the alleged insider added. "She knows his sisters were particularly vocal about their disapproval of Rob taking her back after the affair, so Kristin braved the storm and groveled to them.

The couple were seen by a fan at Heathrow Airport in London the day after Thanksgiving on Friday, Nov. 23.

"Look who's on my plane!!! Robert Pattinson and Kristen Stewart!! OMFG. No 100% serious we just arrived at the same time they were behind me in the line! Couldn't get a pic though up close," a fan had tweeted.

The eyewitness divulged that the pair boarded a flight headed to New York and later joined Beatles' member Paul McCartney in the first class section.

Enstarz reported on Dec. 2 that the couple's fifth and final film together, "Twilight Saga: Breaking Dawn - Part 2," has earned $254.6 million at U.S. and Canadian theaters since its debut on November 16.

Tags: Kristen Stewart Robert Pattinson robert pattinson kristen stewart twilight saga breaking dawn 2