
Yes. There are already clues that it is a past life. In ep96, at the beginning of the episode, Ines has a dream while she’s dying and she sees a memory of her teenage self and teenage Cárcel at a lake in Esposa. In this current timeline, Ines and Carcel never courted especially when they were teenagers so it cannot be a vision from this current timeline. Fortunately, the next episode that will be released this Saturday will confirm it’s a past life. The Korean episodes are ahead of the English episodes.
Ep 96: Teenage Carcel and Ines
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-252476/pg-20/

You will get the answer why. We already saw she was dying. She was only 28 years old when she died. So this season we will get some answers about why she died so young. The story has a HE.
The reason why she lived again several times was answered in Bilboa. When a person die an unfated death they get a second chance to live again. She received a second chance to live so that she could meet her true death. However, because she has committed suicide twice, she has not yet met her true death. That’s why her fervent wish in this current life is to meet her true death.
Do you guys think that the vision of her death that she was shown was the past or the future? The one where she’s on her deathbed with Adronda by her side… where Cárcel was nowhere to be found…There’s no way this has a sad ending… like NO PLEASE!! I will literally END IT ALL FUUUUUU