Are Bradley Cooper and Irina Shayk back together? It’s the question dominating celebrity headlines this week, after yet another set of paparazzi photos were snapped of the couple walking their dogs in New York City emerged.

Rumours began weeks ago, when Shayk posted a series of vacation shots on her Instagram account, with one photo featuring ex Cooper.

Since then, the couple – who share daughter Lea, five, have set gossip tongues wagging via numerous sightings and a very interesting Halloween. They attended a part for fashion label Self-Portrait, posing for snaps with Edward Enniful and Stella Maxwell.

But it was Halloween that really got the rumour mill in full spin. The co-parents took daughter Lea trick-or-treating, with Cooper dressed as a bear and Shayk as Bettie Page. Afterward, Shayk put up some photos from the night via Instagram – including this seriously sexy snap that had fans of the couple hopeful for a reunion.

Since the pap pics emerged this week though, sources close to Irina Shayk and Bradley Cooper have spoken with People, saying that while there is some chemistry still there, the ex-couple are not back together… yet.

Sources say that Shayk would love to be a romantic couple again, but that regardless, they have a wonderful relationship based in friendship and support for their daughter. “After they split, she missed him,” the source said. “She feels very proud how they have been able to get along and co-parent their beautiful daughter.”

Now, it seems that Shayk’s wishes might be reciprocated. “[They] have both been single and started hanging out more together. Irina is very happy to spend time with Bradley. She very much loves him,” one source told People, adding “Irina loves watching Bradley with their daughter. He is a wonderful dad. She would like for them to be back together.”

Here’s hoping.