The guy contacted me a few days ago asking "How is it going?" after half a year of silence, and I didn't reply him on the spot. (i.e. He's interested in talking to me, but I wasn't.)
Who is the guy? Is the guy Chen Jianhai? The guy contacted you a few days ago after half a year's silence, and then asked you "How is it going" one or several hours ago?
He's quite available, especially at night.
Who is "He"? The above guy or Chen Jianhai?