A card for David

Last Thursday, when I picked up Issac after work. He ran to me, unlike before, instead of being so happy, he was so upset and cried so sadly. The teacher told me that Isaac hit David on the face.
On the way home, he was so upset and kept saying: " David is not my friend any more. I do not want him be my friend. " I reponsed:" sure, not David any more, mommy is your best friend, so are Daddy and Caleb. " After he heard that, he seemed to become calmer a little. Upon arriving home, i asked Daddy not to ask him anything. he played with Caleb and became happy again.

After dinner, while Daddy and Caleb was playing chess, I had a conversation with Isaac to find out what happened and why he hit David on the face. Up to that day, Isaac had no record of hitting or pushing any kids. However, I was unable to find the real reason, and he refused to say sorry to David next day. Then I said to Isaac:"do you like someone beat you?".
"no", he answered.
"so, if you do not like it, David must not like it either. "
"so do not bully other kids", as soon as he heard bully, he wanted to cry...
I know that it was not his intention.
"mommy knows from your cry, you felt so bad by hitting David. You are not happy after you hit
people. In fact, no one would be happy. I still remember bright horizon ( previous daycare )'s Isaac, that Isaac was always happy, and helping other kids, when a kid cried, that Isaac brought the toys to him/her, and gave him/her a hug. Everyone loves Isaac at that time. " He started to smile and remembered things. I continued:" mommy wants that Isaac coming back, do you think that Isaac will come back?".
he nodded.
"Is that ok with you to say sorry to David tomorrow?".
he nodded again.

Next morning, Daddy dropped him to daycare. When I picked him up, the teacher told me with proud:" Isaac brought a Sorry letter and card to David this morning !" just then, David was passing by with his daddy, he held the card that Isaac gave to him and showed me delightedly:" I got a card from Isaac." The teacher asked me if I told Isaac to do so. We discussed the reason, teacher told me that " David and Daniel are twins, usually three of them are playing really well, However, David and Daniel are closer to each other, Isaac seems to be frustrated when he tried to break in.

I am so pleased by Isaac. Neither Daddy or I told him to do so. It is so nice to see that he was thinking and finding a way to gain his friend back. In the meantime, i need to work with Isaac to understand and accepted that it is natural that brother-ship is stronger than friendship.