A publicized affair, subsequent break up and numerous dating rumors, involving everyone from Katy Perry to Riley Keough, can't seem to keep former lovers Robert Pattinson and Kristen Stewart apart. Rumors that the “Twilight” co-stars had rekindled their three-year romance circulated Monday after photos of the twosome spending time together surfaced.

In photos obtained by X17, Pattinson can be seen pulling up in front of Stewart’s Los Feliz, Calif., home and then going inside. According to the report, the 27-year-old actor spent two hours in his fellow “Twilight” star's company last week. “Rob looked nervous on his way to visit Kristen,” a photographer for X17 said. “He was trying to be discreet so no one would see him.”

The couple split in May after it was revealed that Stewart, 23, had an affair with her 42-year-old “Snow White and the Huntsman” director, Rupert Sanders. Following the release of images of the starlet kissing the married filmmaker in July 2012, Stewart released an apologetic statement. “I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected,” she said. “This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry.”

Following their breakup, Pattinson and Stewart have been linked to numerous famous faces. Pattinson, a British native, was rumored to be seeing pop singer Katy Perry after the two were spotted twice in May, leaving the Met Gala in New York and crashing a couple’s wedding rehearsal in California. Perry, 28, denied the reports earlier this month, claiming that the duo are just friends and telling ELLE UK magazine that she even reached out to Stewart in an effort to clear up rumors.

“I sent her a text message saying, ‘I know you've seen all this stuff, but you know I would never disrespect you. I'm not that person,” Perry told the magazine. “‘I'm just trying to be a friend to him, but it is unfortunate that I do have a set of t-ts.’”

Stewart, for her part, was linked to “Boardwalk Empire” star Michael Pitt in July after a photographer captured the pair enjoying a haute couture fashion show in Paris. A source revealed to the Sun that the acting duo was getting close and both enjoyed living a “low-key lifestyle,” claims which a rep for the 32-year-old actor denied.

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