Why.he's.treating.like.that?

Im sad . Hurt . Why i cant even ask a ques that i want to know ?
He change alot . He said he wont stand for me anymore . WHY ?
Why can say break up easily to me ? Im really really hurt . Im trying to talk to him nicely
and he's the one admit he scold me . He's personality is like that. Why he keep on treating me like that ?
I dont know who to talk to . And i just need to keep it in my heart everyday . Its really hard for me .
I wish to work hard tgt . but he just want to treat me like that . Am i that useless .?
I dont know i still need to cry for how many times . If he really dont want me anymore ,im okay .
I should respect him . I already burden him too much .
I would like to say sorry .