Quote: Pam, my dear, I suspect he just means he is concerned about you. More concretely that you might overreact to his posting something he felt at that moment, in a 'just venting' spirit. We all post things that we feel very strongly about when we think that venting at our S may strain the R. If our S were to read that post, it would be easy to overreact.
Optimist wins the prize. I think a big part of my concern is that you tend to analyze things in great detail. When you get really upset, you don't necessarily stop and think clearly, but get on an emotional charge.