Sexting

i had done sext with a girl. i was clear about to her that i will not to marry her from the start .after couple of months she started to blackmailing me. i want to get married she tortured me like for a six months. i explained her but she was no ready to hear what i say. i never threatened her or blackmailed .i never touched her.she said i will book case against you. she said here in india only girls will have advantage for problems like this. she said the only way is to get marry her or go to jail.