Why?

We talked and I confessed my feelings,He said he understand "nothing will change" ,
he promise.But Days,week, and month past he haven't txted or wrote me at all.I want to cry but no tear wants to fall.Its hard for me,it's like tearing my heart and all the pain was stucked.I don't know what to do..I can't cry..

I want to fix his eye on my direction so that he would see me,and to make a connection.But when I saw him or we saw each other,I pretend that I don't saw him,even though I want to make a smile on him.I want to be close to him.

my friends kept telling me to let him go and move on but i just cant.I don't think they've been in love like Ive been in love And maybe they never felt what i felt cause if they did they would know that its not that easy.I really want to let go but I cant.Even though I know that I'm waisting my time for loving him,He doesn't care about me,I'm worthless for him and He had her gf.But I still want him..

why I want him?
Why I cant say goodbye?
Why he doesn't care?
Why it feels like he abandoned me in pain?
Why I'm so stupid for him?