Can he expose my affair and retrieve call data for blackmail?.

I want to divorce my husband because I do not like him and know he has cheated on me multiple times, but I cannot get evidence. He does not want to divorce me, so I started an affair. Recently, he found out and has been blackmailing me, threatening to expose me in front of my parents and society, claiming that a man can have affairs but a woman cannot. He says he can retrieve my call data and hurt my family and me. Can he really do this, and what should I do?