"too hard for me to figure it out"
The first thing you have to do is look in the "
To:" at the top of the post.
The
first name after the
"To:" is whom the post is replying to.
Anyone after that is either involved in the conversation (you, in this case), or a PING to others.
(example would be that her name is after yours in this case.. so I am replying to you, but she is part of the conversation.)
Many people (I have done it before myself a few times) don't bother looking at the
"To:" up there, so can misjudge the direction of the post..