nothing ever goes as expected

i had to face a really hard obstacle last night. i had to try with all my might not to punch the one person in the face who ruined everything.
i ended up going to my dads. and his ex-girlfriend was there. there is so much animosity between her and i and i have so much hatred towards this woman for reasons unknown to my father. i tried my hardest to be nice for my dad, but i didn't speak almost the whole night in fear i would start to get on a rampage. a handful of people know the trials i had been through because of her. the damage she had caused by the lies she had told.
its just that hard to forgive.
and its even harder to forget.