why is she so heartless now?

[Kevin]

You ask why is she this way? Because you allow it. There is something in you that she needs, I don't know what that is but your more then willing to give it to her. However its not enough to keep her faithful. Cut her off totally, respond to nothing, don't contact her, block or delete her from all social media outlets. Its called going dark. In a short time you will find her true intentions with you.

Right now she feel like she is in total control. When she wants you, you're there. When she wants out she knows she can come back and you will allow it. Once she is faced with losing you for real, you will see what she is about.

Bottom line, become unavailable to her, stop playing the role of beta man (aka Mr. Nice Guy). Be more alpha (put yourself first) and decide your path. Believe it or not women respond to that.