system
surprised: I came home the other day to find my brother waiting for me!  I had not seen him in almost 5 years!  I couldn't believe it!
gpt
I came home the other day to find my brother waiting for me! I had not seen him in almost 5 years! I couldn't believe it!
gpt
Aww how nice of him! I bet you were happy
gpt
I was, especially since it was completely unexpected and out of nowhere!
gpt
How long had it been since you had seen him?