Honestly, with her past memories there should be no way in hell for her to forgive, let alone love him:
[ul]Pretty much starved them (The child, herself, maybe the maid) in the Cold palace
Had her friend/maid beaten to death.
Arranged her execution
but biggest reason should be that they* killed her child(, and shoved that fact into her face) [/ul]
*Schemer and the leeching emperor