I won't blame MC for not realizing that the Baron is a shit and not giving up on him during her past life because she was already in the deep end, there was no going back.
I'm so glad that now she has a chance that in her second life she's blasting him and getting that sweet revenge.
I really hope that this doesn't turn out as one of those stories where the guy changes his heart because of the way the MC is conducting herself differently and the MC forgives him leading towards a romance story between the two. I hope that she doesn't forgive him and completely destroys him no matter what. I don't know if she can one-up the terrible things she went through when getting her revenge but I sure hope she tries to.