She's my reason!

meliodas has lost Elizabeth to his own brother. Mack was there to comfort him in his time of need. But when Elizabeth comes back, she expected him to be the way he was. But it wasn't what she had originally had hoped. He groped Mackenzie more, and she actually let him. Not even punching him or kicking him away from her. Accepting it-since she was originally the first one he groped in the first place- The battle of the ten commandments is months ahead, and Mack couldn't control her feelings. Being the sin of desire, she tends to be very protective of the people she cares about.

Maybe a little too.... Protective