apologize when actually want an apology

I just noticed that I do this. I apologize and then expect the other person to reciprocate it … because I don’t think it was all my fault. Little things, nothing big. noticed I get a little shocked and annoyed when not reciprocated and wonder should I have apologized at first at all. Just noticing this. Guess it is a manual/ cultural difference also. Just observing and thought would post.