why...??

ermm... nw a days our relationship didnt like usual.. we seldom talk.. i awaiz silent myself.. i wnt 2 talk 2 him bt i cnt throw a word..
from wht i heard, he is dating back wit his ex-gf.. he didnt mention he's dating wit her, he juz said he's hanging out wit fren.. i noe he's dating from a fren of mine n its true..
my heart break into pieces.. i tried 2 act normal bt i cnt..
2 days i didnt spoke wit him.. da rest were wondering, wht on earth is going on..? *sigh*..
sumtimes my frens blame me 4 being 2 quiet n sumtimes they ignore me.. wht should i do..??