japanese girls and communication

this will be a bit bitter as mine just broke up with me. I would not be wrong to say they have no heart. One day they seem an say they love you so much and within minutes they will talk about or break up with you . Im sure some of them are great but to try to talk to them about things....they look at confused an tilt their head to an fro....least there are millions of em marriage...no. They dont tell you much and you cant really talk , its ok at first but after a while its tough.