Robert Pattinson and Kristen Stewart just can't seem to make their on-again, off-again relationship work -- assuming they are back together for real. Following rumors earlier this month that the former "Twilight" co-stars were considering getting married, a new rumored report is now claiming that the couple is still together, but reportedly fighting over their pending holiday plans.

According to report from Life & Style via The Stir, the actors, who split in May but were rumored to have reconciled this summer, are currently in an argument over where to spend the Christmas holiday next month. "[Robert] is supposed to go home to London for Christmas, but Stewart wants him to stay with her here [in Los Angeles]," an insider revealed to the magazine, adding that the 27-year-old "Maps to the Stars" actor is "torn" over the argument.

While the couple is allegedly feuding over where to celebrate Christmas, Entertainmentwise reported that Stewart, 23, spent Thanksgiving alone Thursday. According to their report, the "Snow White and the Huntsman" actress was spotted spending her annual Turkey Day sans Pattinson with a female friend in Los Angeles.

The rumored argument between the pair conflicts with a report from Life & Style earlier this month which stated that the actors, famous for portraying lead "Twilight" characters vampire Edward Cullen and human Bella Swan, were close to tying the knot. "They are inseparable and 100 percent back on," a source told the magazine, adding, "I wouldn't be surprised if they just suddenly eloped!"

Pattinson and Stewart were last spotted publicly together in Los Angeles in October. According to a report from E! News via a paparazzo on the scene, the twosome was photographed driving near one another, in their own respective vehicles, after meeting at an undisclosed location. Pattinson was previously spotted by X17 photographers visiting Stewart's Los Feliz, Calif., home in August.

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