A fight with my stepmom...?

i have a stepmum who is married to my dad and has 4 kids. and i have a mom who has a boyfrend and will soon get married to him. i got tired of living at my moms house coz i dont like her boyfrend and i dont want them 2 get married, so i decided to go to my dads. this waz a lame idea. coz: my stepmom has started gettin rude to me now. today she told me that i should knw how to cook and she said shes gonna teach me. i got kinda pissed that why is she tryin to do that? so i told her that i hav my own mom who can teach me. she got angry and she told my dad that i dont like her and i dont want to learn nything 4m her. my dad has alwaiiZ been on my side on this so he said that she didnt understand. but shez a ***** so she just said im alwaiiz rude to her and she made up all these stories. then she starts cryin and stuff. i got really pissed off by now so i guess i screamed at her and i ran out of the house and i went to by big brothers. i dunnoe if i did the rite thing.....but i still think that shez a *****......help....??