Complex sentence: Initially LTTE members were prohibited from having love affairs or sexual relationships as it could deter their prime motive, but this policy changed after Prabhakaran married Mathivathani Erambu in October 1984.
Split into simpler sentences: Initially LTTE members were prohibited from having love affairs or sexual relationships as it could deter their prime motive. But this policy had changed since Prabhakaran married Mathivathani Erambu in October 1984.