Emilio, the singer she did the video and album photography for, doesn't even follow her anymore. It was just business / promo for him. He shared a group chat in which he and his producers discussed who they should cast for the video, and they said it should be someone really attractive and popular who would generate a lot of publicity. And they chose Steffi. It now seems like she may have sacrificed her relationship for this collaboration while Emilio just used her for publicity. I get that it's normal for a model to play the girlfriend in some video, and that this can involve touching and kissing, but making it look like there is more going on is a no-go. She should have protected her relationship instead of keeping people guessing if she was with Emilio. But it's all speculation.
Steffi looks much thinner than she used to. She is spending time with friends, traveling and partying, and that's okay. But I think the reality of the breakup is going to hit her as soon as she slows down for a second. Despite all her fun and happy posts, I don't think she is doing well. Marcus is keeping a fairly low profile.