Relation with my Sister

My sister is about seven years younger than me. We are two siblings.
From childhood, she is a sweetheart of mine. When she was born and my Mom gave her in my lap, I was astonished to see her. I was thinking that she was a doll who can cry, smile, throw her hands and legs, and could blink her eyes.
Many times my duty was to keep eye on her every day after my school and if noticed any unusual activities of her immediately inform my Mom.

But most of the times if she cried of anything and I was being blamed that I had disturbed her, though I was not.
When she started walking my duty was to follow her most of the time, so that she did not get hurt. Two-three times she also peed in my lap.
She was having more attraction towards my books, pencils, pencil boxes, erasers, and whenever got the chance used to tear those. But I was blamed by my parents for keeping those in her vicinity. I got angry sometimes.

When she got admission to nursery school many times I used to go to pick her up after school. She used to hold my little finger and introduced me to her friends.
She used to learn singing from a very young age and I was her companion with Tabla. Many times we quarrelled about the quality of our music presentation.
When she started going to high school, I was also studying in higher classes and also started playing seriously, as a result, this connection started a little feeble.
On the first day of her job at ITC, I accompanied her and was feeling proud of her.

When she got married and left the house with her husband a strange sadness surrounded me.

Now her daughter gives me the same feeling what I had when my sister was small.