My Groom's Pregnant EX Ruined My Wedding

At my wedding ceremony, a woman six months pregnant walked down the aisle and announced to everyone: she was carrying my fiancé's child.
I tore my wedding dress to shreds on the spot and declared the wedding over.
But the real betrayal was just beginning—
My own mother actually urged me to become the other woman. "Men make mistakes sometimes. Todd's family has money—just put up with it."
My stepfather took advantage of my vulnerability and tried to assault me. "Since Todd doesn't want you anymore, you should learn to appreciate those who truly care about you."
Since kindness was mistaken for weakness, and blood ties became shackles—
Don't blame me for turning ruthless.
I'll make every single person who hurt me pay the price!