Ooohhh that was so cruel! I felt my heart shrivel when Clark was in shock

Damn Luthor... you'll really make me happy if you just throw him away from the penthouse

or, maybe ... you may have a better way to give him a proper good-bye, with no chances of clone him.....
About the insecurities of... everybody... I wonder how would you solve them... more begging? More misunderstandings? Humm... I really hope they both finally get to understand each other and trust each other (including some confession from CK) so they could be together... sometime....