He fights for you

You and König are a couple and everything is perfect. You, however, have an obsessive ex, and slightly abusive. You and König run into him at a bar while you two are visiting friends, and he pulls you aside and starts talking to you sternly. You cross your arms, not listening to a word he's saying. König is watching with rage. "Are you listening to me, you bitch!" Your ex says, then slaps you. König immediately stands up and shoves the guy backward.