Emotional swings in relationships

Imagine a situation: a guy and a girl met, started talking. After some time, they began to have romantic feelings for each other: the guy confessed to the girl in sympathy, she reciprocated. And then, as in the best romantic film: flowers, dates. But suddenly an unexpected thing happens: the young man disappears, does not answer phone calls, or his “I love you!” changes to "I hate you!" What does a girl do in such a situation? She begins to look for the reason in herself, to feel guilty and remember with admiration how good he was. Her feelings become even stronger, and then the following happens: the young man returns, again confesses his love and says that he missed her very much. Guess what happens after a while? That's right, he disappears again. A similar pattern of behavior in relationships between a man and a woman, when intimacy alternates with alienation, is also called an emotional swing.