Hi. It is quite likely that you have encountered a girl who uses exactly cold and hot behavior in a relationship. But you also rightly noticed that you need to be sure of your observations. To do this, I advise this article https://wisedate.org/hot-and-cold-behavior/ which just perfectly describes all the signs of a girl who uses cold and hot behavior in a relationship. With this knowledge, more than one girl will not be able to use you like that.