Your Ex Girl friend isn’t replying since a week. Okay. Leave her. We are never so much busy that we can’t type a letter or two. She just want to avoid you politely. Only way to get her back is to leave her.If she also loves, she must return.Else who wants such a girl!
Don’t linger with anyone who is not interested in you.You must always maintain a inner detachment. Love but no attachments.