Knowing Etienne, would he have ever given her the ring? I think after marrying her he would've kept making excuses to try to postpone things.
Yep, and let's not forget she wanted the ring because she wanted to be free and happy, and that was also the time when roger "hated" her, but now that bot now know that she was just acting to get roger away from the harm and danger her curse carry. She ran away with roger because she believes she will be free and happy, since roger not just loves her with all his being, but also RESPECTS her, he literally would choose to die than commit act of sexual assault onto her.
Why would she give up on the ring???
That was a stupid decision!! It was only two days away!