Tabi is the ex boyfriend of GF and they broke up because he noticed that GF was using him for his career y she didn't even care about him and the fact that Tabi wears a goat skull an has a invisible body is because GF's dad Daddy Dearest turned him into that so Tabi is now protecting you because he doesn't want you to have the same experience as him. The poor Russian guy with a goat skull named Tabi does actually care about and doesn’t want you to be away from him♡