I Parted Countlessly From My Beloved Over a Millennium, Now I Shall Become the Wicked Lady

From Gourmet Scans:
“Swear… that you will never fall in love with me, no matter what.”
A thousand years ago, a sad fate separated this pair of lovers.
No matter how many times they reincarnated and reconnected, it always ended with his tragic death…
And once again they are reincarnated, as a count’s daughter, Amelia, and a marquis’s son, William.
“I absolutely will not let him die this time!”
Having decided this, Amelia swore that she ‘won’t love him anymore’, and put on an act of being a wicked lady.
However, puzzlingly, he is the one trying to get close to Amelia this time, and even sends her a marriage proposal…?!