(Craig gets a bit.. Too obsessive and possessive about tweek that he actually starts unconsciously (and consciously)murdering/threatening/hurting the people around Tweek to have him all for himself. Although he tries to control it, he just sometimes unconsciously loses control and starts feeling guilty afterwards. But after remembering he's doing it all for tweek, he just thought nothing else would matter. As long as tweek stays with him.

”Tweek..it wont happen again..!”