This problem should not be difficult to explain, because maybe he felt good for a while and then he saw through everything. Although there was a brief beauty, it could only be a moment, and it passed in a blink of an eye. I think he no longer has any illusions about something, but he thought it was beautiful when he had it, and now this beauty is about to disappear. Is there something between you that you haven't noticed? You should communicate well. Often in our ordinary life, we will ignore some people and things around us and really communicate once. If we are more romantic, we will find the answer. I'm also guessing. Don't believe it.