Why can't Inuyasha forget about Kikyo

Inuyasha was sitting in a tree with Kikyo.Kagome was watching the whole thing,but Inuyasha did not know it.So he kept on talking.Then they kissed.Kagome was so jealous.So she walked off.Then Kikyo said goodbye and left.Then Inuyasha walked away.He saw Kagome sitting there crying.

He sat down and asked her what is the matter.She said"Its you and Kikyo."He said"What is it?"She said"Inuyasha I love you."He said "I didn't know Kagome you have never opened up to me before."She said"Well if you would pay more attention to me then you would know." sob sob.

He said"I'm sorry but you know I love Kikyo."She said"So you love a dead girl more than me."He said"Kagome she might be dead but I love her!"So then Kagome said "Then why don't you just leave me alone."He said"Kagome you know I love you but I could never give up Kikyo."Then he tried to kiss her but she pushed him away and said "Just leave me alone for awhile."Then she walked off.