6

I don\'t have many friends but I have a best friend.

>> Correct
 I met her when I was a middle school student.

>>Correct

or

>> We met when we were middle school students
 She was very cute and very short and I was very tall and fat.

>> Correct
 But we became close very fast.

>> Correct

or

>>> But we quickly became very close.
 We went to school and hung out every day.

>> Correct
 We didn\'t have secret together.

>> We didn\'t keep secret from each other.
 We grew up and got married. 

>> Correct
 She has a son and I have two daughters.

>> Correct
 We can\'t meet often because she lives far from my place.

>> Correct

However we can talk every day on the internet with Social Network Service.

>> Correct

or

>> However, we talk on the internet or SNS everyday.
 We usually talk about our children and husband that is just gossip.

>> We usually talk about our children and husband which is almost gossip.
 I miss her.

>> Correct