Megan Fox; Machine Gun Kelly.Photo: Kevin Mazur/Getty Images for The Recording Academy; Ethan Miller/Getty Images

Megan Fox Machine Gun Kelly

Megan Foxtook herself out onOscarsweekend.

Fox appeared without herengagement ringat the party, as shedebuted a new vibrant red hairstylealong with her fresh-off-the-runway, plunging Miss Sohee Couture gown.

“She seemed really happy and light. Super nice to everyone,” an insider says of Fox inside the party.

Another source tells PEOPLE Tuesday that Fox and MGK are still working through relationship problems.

“They’re not completely done. They’re still trying to sort through things, but most of their friends think it is likely over. They’re just not ready to totally call it yet,” the source says.

Megan Fox and Machine Gun Kelly.Kevin Mazur/Getty

65th Annual Grammys - Megan Fox & MGK TOUT

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Fox’s solo appearance followingthe Oscarsceremony comes about three weeks after an additional source told PEOPLE she and Kelly are “still not in a good place,” even as she returned to Instagram and shot down rumors about their relationship.

The actress had completely deactivated her Instagram account in February afterhinting at a potential breakupbetween her and her musician fiancé, but she shared a since-deleted post upon her return to the platform saying there wasno cheating involved in the relationship.

“There has been no third party interference in this relationship of any kind,” Fox wrote. “You need to let this story die and leave all of these innocent people alone now.”

A source who is familiar with both Fox and Kelly told PEOPLE in February that theTransformersactress had initially suspected something was amiss and reacted out of emotion.

“She’s now posted that there was no cheating, but she initially thought there was and now is backtracking a bit,” the source says. “She was definitely hinting at infidelity with her first post. She regrets making it all so public, but was really upset in the moment.”

RELATED VIDEO: Megan Fox and MGK Are ‘Not Giving Up on Their Relationship’ but She Is ‘Still Upset’: Source

Fox had sparked rumors when shehinted at a potential splitwhen she uploaded a series of photos of herself and a video of an envelope being burned in a fire pit in February. She captioned that post with lyrics fromBeyoncé’s 2016 albumLemonade, writing, “You can taste the dishonesty/ it’s all over your breath.”

Fox and Kelly first met on the set of the indie thrillerMidnight in the Switchgrassin March 2020. The musicianproposed to Foxin January 2022.

source: people.com