While rumors are running non-stop on Robert Pattinson and Kristen Stewart's relationship, the latest speculation has it that Pattinson that the former his missing his Twilight ex.

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On Friday, Hollywood Life reported that Pattinson was looking "sad" on the set of his new film "Life." There is a picture of the actor in a long black coat with gloves and brown boots as he walks with what appears to be a dismal look on his face. It seems unclear if this was part of his film or not, but it creates a possibility that he could be missing Stewart based off all the rumors that have surrounded the former couple.

There was a rumor over Valentine's Day that Pattinson bought Stewart flowers despite their breakup.

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"Rob is good with stuff like that," a source reportedly told Hollywood Life. "He has sisters that trained him well. Even though he and Kristen aren't together, he wanted to make sure that she knows she still matters to him."

If Pattinson really is missing Stewart, then this could be a part of Stewart's rumored plan to win him back by playing hard to get.

"Kristen has been telling all of their mutual friends that she's over Rob and ready to move on, but it's not true," a source supposedly said. "She knows it will get back to Rob, and it's all part of her plan to get him back."

"Her plan is to start ignoring him although so far, she hasn't been able to go that far, but that's her plan," the source added. "She thinks that once Rob realizes she's not such a sure thing, he'll start making her a priority again. Her friends all think it's the smart thing to do, that Rob will be more interested in her when he thinks he's lost her."

Tags: Kristen Stewart Robert Pattinson