It's funny the way our minds work. We get a rush, an intense wave of pleasure and then it's all we want. We want more. The craving becomes so intense to anything and everything surrounding that pleasure. Sometimes it's a good thing, sometimes it's bad. In your case it's a bit of both, which in itself takes into to another level of exhilarating. Either way the craving is there, the pleasure cannot be matching so you may as well give in.