我本薄情之人却恋你成性我本凉薄之人却想你成痴
[wŏ bĕn bó qíng zhī rén què liàn nĭ chéng xìng wŏ bĕn liáng bó zhī rén què xiăng nĭ chéng chī]
The user is saying, paradoxically, that despite being an unfeeling or indifferent person by nature, they can't help but fall in love with and be infatuated with someone else, emphasizing the intensity of their feelings.