"Judas betrayed Christ with a kiss, the sign of friendship and love. The betrayal and crucifixion of Christ carried the ancestral sin to its extreme limits. In these two acts the rebellion against God reached its maximum capacity. The seduction of man in paradise culminated in the death of God in the flesh. To be victorious, evil must quench the light and discredit the good. In the end, however, it shows itself to be a lie, an absurdity and sheer madness. The death and resurrection of Christ rendered evil powerless." (from an Eastern Orthodox website)
Holy Week is when everything slows down, and truth presses its claims: will I keep settling for a superficial embrace of our Lord, or am I ready to submit to the schooling of the Holy Spirit -- the only One who can teach us how to become "partakers of the divine nature"?
Easter can be either a false kiss or true Communion.