why didn't accept me.........  

hey laxmi
It's pity to hear that. I don't think she didn't accpet you, maybe she didn't accept anything at that time. You said so many guys ask you to be a friend, so I think you're charm, it's not your probleam it's just a wrong time.

I think,at that time that lady was not in a good mood,and you said she made suicide attempt on the very next day,so its clear that she was not in a good mood.
There is nothing to worry here.
And its also depends on the nature of the person whom we approch to give a friend request.There are many kinds of people around us na.

Laxmi.... this is called the luck!!!!
See you tried to approch her, even tried to be her friend by initiating the topic as "hi". But at that time she was in other mood...means at that time there was no value for you in her eyes. It was her hard luck that she didnt accepted your friendship.
Its sad to hear that she comitt a sucide.(May be this was in her luck)
I know laxmi you are very much shocked by this event..... this is called the color of life. I know if you had known that she is going to commit sucide you had never let her alone may be tried to mold her.
Its so sad to hear about that girl.