updated 02/19/2012 AT 4:45 PM ET
•originally published 02/19/2012 AT 2:45 PM ET
As Seal turns 49 on Sunday, it seems unlikely that Heidi Klum will be celebrating by his side.
Multiple sources tell PEOPLE that although the couple originally hoped to reconcile, a reunion might not be in their future after all.
“They had both been wearing their wedding rings and had mutually thought they might be able to work it out,” one source says. “But it doesn’t look like it’s going that way.”
In fact, less than a month after the couple confirmed they were separating after nearly seven years of marriage, Seal was spotted sans wedding ring earlier this week in Australia – a contrast from his earlier sentiment that he had “no intention of taking [his ring] off anytime soon.” Klum has been spotted out without her ring as well.
The couple also spent Valentine’s Day in different countries, as Seal worked on The Voice in Australia. Klum, 38, kept close company with her friends in Los Angeles at the Soho House.