Reading that "polysecure" book, and talking about it with @puddingschnecke ... I'm not even halfway through the book yet, but we already had some interesting points to think and talk about.

We talked about expressing emotions directly when they occur, vs. having to process them first before talking about them. And I had thought that I'm always the one who expresses them almost immediately, and it's really hard for me to hide what I'm feeling - while Lena tends to pre-process emotional stuff more before talking about it... at least for "negative" emotions - telling me about happy feelings doesn't need processing.

And that's when I noticed that it's kinda reversed for me. I can't keep "negative" feelings to myself for long, I need the situational context to still be fresh when I express them.
But surprisingly, I can sometimes be quite hesitant about expressing happy emotions O.o