My girlfriend is threatening to commit suicide if I don't marry her.

I was in realationship with a girl from past 7 years. It was mostly over phone only we spoke, we had no sex or live in realtionship. Now she is threatening to commit suicide if I don't marry her. I had never promised here to marry her or ever used it as a condition for soliciting sex or any other favours. Whatever physical romance we had was non penetrative and also concentual. I had not forced, enticed or coerced to perform any physical acts with me, whatever little happened over the course of last 7 years was with mutual consent but now she is claiming that she was promised marriage from my end and if I don't comply to her demand of marrying her she will commit suicide. I have phone conversations recording where she can clearly be heard that she will die "go off" "not live anymore" in case I refulse to accept her demands. Morever she is also not allowing me to leave Bangalore and travel to my hometown as she is imagining that I will go to my hometown & get married to someone secretly