Why are someone so mean?

I have a friend. I was soo curious to know about everything. Don't know why..... But I was....

I thought everyone is good and kind by heart..... I think I was wrong....

We both shared numbers and stared chatting...

But now I think I am being ignored.

Guys.... I need help....

Suggest me should I reply or just do the same.... (Tit for tat).... Or I just block....

Gone frustrated... By such kind of attitude....