yay! i guess my mom talked to my sister. she said "it has been 4 years. obviously theyre not breaking up any time soon and this isnt just a fling. so do you really want to expend that much energy to be mad? isnt it so much easier and less stressful to just let it go?" and i guess my sister talked to my dad and invited him and his girlfriend to her house for xmas.

we went there today and i saw she was there and was silently waiting for the explosion - but nothing. then when my dad and his girlfriend left, my sister didnt say anything. she never yelled at me, accused me etc... i guess her and mom's talk kinda clued her in on how immature she was acting about the whole situation.

and to top it off, my dads girlfriend actually talked to me. it was weird. i felt a little awkward but she held on conversation with me and bought me a present. so maybe she will start to make an effort now that my sister got off her white horse.

thanks for your guys' help. i guess i just know now that to get anything into her head, my mom has to be the one to say it lol. and i guess my mom also told her "your sister is not the reason this is happening and you dont need to yell at her for it". so she quit blaming me for everything. (for right now). well see how long this transformation lasts.