After three months with my girlfriend, I suddenly don't know what to say to her. Now there are fewer phone calls and text messages. Me neither. why

Every couple has this problem! ! ! However, you are too fast. I think you still don't love enough! ! ! In other words, you haven't known each other long enough to know each other well enough! Maybe you haven't quarreled until now! ! ! In fact, I found that quarreling can enhance the feelings of two people and let them know each other better! Once there is a contradiction, and don't tell each other, buried in the bottom of my heart for a long time, it will become a time bomb! ! ! Therefore, when two people are together, they must communicate! ! !