wat's the matter with her??!!

''her'' in the tittle is my sis..
dunno wat is wrong with her..

now she seldom talk at home..
even with my mum..
although bfore this she very 'fren' v my mum..

the story start here..
ealier last month my dad had already accept his fren invitation to breakfast together on last sunday..
den last sunday at my church had a healling service..
she wanted to go..
cz she had some problems..
den my dad oredi promise his fren n his type is cannot reject wan..
so my sis not so hapi.. n she dunno how to tell my dad..
my dad is one kind wan n he n my sis cannot comunicate wan..
so everytime she got thing wan to tell will through my mum or me to him.. if possible.
if not when they talk they can fight..

so my sis go tell my mum she wan to go to church on sunday den can dun go breakfast or not..
i dunno wat happen in the end n she din talk frm dat day onwards..
mayb my mum tell her cannot or something..
so now not hapi i think..
den she never talk is ok.. but when my mum try to talk to her she like not hapi to answer..
fierce n short answer back..
wats wrong woth her??
den now im like the middle person.,.
she wan tell my mum something she will come to me n tell me to tell my mum..
cant she juz b like last time..
can spend time together n play n joke..
now like so serious..

when my mum wan to b nice to her but she still like dat..
very crazy la now.. i dunno wat is going to happen nxt time..
im thinking if stilll like dat nxt time my parents old den dunno she will care them or not..
or im the only one who muz take care of them..
am i thinking too much??
hope she can change soon..
i dunno wat to say anymore