"You are not afraid of your emotions. That seems so simple, but I am forever in awe of your courage. You love without question and without restraint.
You are also one smartass, snarky mofo and I adore you for it. You don't just stand up for what you believe, you fight tooth and nail, taking things head on and never backing down."
Wow, that's pretty awesome that I'm thought of in that context, even though there are some emotions I'm completely terrified of now and then.