The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed.
Are we to love only those who deserve our love? Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy. But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you; that ye may be the children of your Father which is in heaven. - Matthew 5:43-45