Robert Pattinson and Suki Waterhouse were spotted getting cozy in the streets of London. In this image, Robert Pattinson poses at Dior Homme Menswear Fall/Winter 2018-2019 show as part of Paris Fashion Week at Grand Palais in Paris, France, Jan. 20, 2018. Pascal Le Segretain/Getty Images

Robert Pattinson and Suki Waterhouse were spotted getting cozy in the streets of London this weekend, sparking dating rumors.

The two reportedly watched "Mamma Mia! Here We Go Again" before heading for late night drinks. While returning home, they were seen indulging in some PDA.

"Along the way, they were very close and cuddled and kissed many times. Robert was very affectionate to her and had his arm around her the whole way and Suki reciprocated by holding his hand and kissing it,” an eyewitness told E! News.

"They were very loved up and close. Robert stroked Suki's hair and gave her another loving kiss,” the eyewitness added.

Pattinson called off his engagement with FKA Twigs in late 2017 after dating for more than 2 years. A source told People that distance and time apart created a rift between the couple.

“He is on a press tour and she is working on her new album. And I think it’s timing. They’ve been all over the place. They have not seen each other in probably two months,” the source said.

The source also said there were chances of them getting back together. “I think they will eventually get back together. He still loves her and I think that’s the girl he wants to marry,” the source said.

The two were first photographed together hanging out with friends in 2014 and Pattinson popped the question to her in 2015.

Prior to his relationship with Twigs, he dated his Twilight co-star Kristen Stewart. Last month, the exes reunited at a birthday party for Lily-Rose Depp and were photographed mingling outside. The two reportedly chatted for a few minutes and seemed to be friendly.

"Kristen smoked a cigarette and Rob stood and talked to her quietly. They were both serious, but stood together alone behind a car and exchanged a few words,” an insider told E! News.

Pattinson and Stewart called it quits in 2013 after the actress was seen kissing director Rupert Sanders. She also issued a public apology stating "I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected. 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."

Waterhouse, on the other hand, made headlines recently after being spotted with Jennifer Lawrence's ex Darren Aronofsky. However, the rumors were quashed by them. "They are not dating nor are they together," Suki's representative told E! News.

"It's true that they hung out in Sundance, but there's absolutely no truth to a romance,” Darren's representative said.

Waterhouse also dated actor Bradley Cooper for more than two years until 2015. "Her friends have been convinced Bradley was close to proposing, but for some reason he just never came through. Suki was adamant that if he couldn't bring himself to commit to her, with or without a baby, then she's obviously not the right girl for him," a source told Grazia.