How harmonious the expression of affection in Japanese people is

I use my smartphone every day. I use SNS especially Twitter, Facebook, Tumblr, Google plus. I play social games especially Puzzle & Dragons, Pokemon Go. It is hard to live without my smartphone and without using it. I actually addict to it, but my smartphone also addicts to me, I think. What does it mean? It means the smartphone exist to make my day and to get ready for carrying out with you. The more time you use your smartphone, the more addiction with each other.
Do you care about someone excepting for you when you use your smartphone? Nothing. I cannot afford to worry about someone excepting for myself. Being crazy in love is sometimes not intelligence. But being crazy in use of your smartphone sometimes makes us feel you are intelligence. Why? The answer is that there are differences between smartphone and love. One of the differences is the stability. “Love” is fluid, but smartphone is not. A smartphone does not hide away from you, run away from you and vanish from you. “Love” is full of uncertain, for example, if you love someone friendly someone you loved is maybe not care about you. In addition, if your relationship becomes better, there are fear that you will break up. In contrast, the smartphone don’t betray you unless it was broken.
There are high-barriers that the relationship between you and your partner becomes better. Making the relationship better need various functions, especially the conversation each other.
But, in Japan, the needed functions is different, I think. As a way of the declaration, some Japanese people show a strong tendency to use a chat app like LINE, which is so popular chat app in Japan, rather than express own affection in person. Japanese culture gives us a lesson it is ashamed of you that telling my own love directly or showing a purpose to make up to. As a result, some Japanese people maybe think using a chat app to express own affection is would be better not to attract attention. (341 words)