What should you do if your boyfriend has not called in 2 days?

It isn't necessary for your boyfriend to call you every single day, and two days isn't much of a wait. He could be working, studying or out with his buddies. Perhaps he just needs some head space. Just in case, if he phones, get someone else to answer the phone (or if you live alone, put your answering machine on) and don't answer it. Make HIM SWEAT IT OUT! Then return the call the next day. If he asks where you were simply say, "Oh, just out." If he presses you then just tell him you were out with girlfriends. Never let a guy think you are sitting by the phone waiting for him to call or hanging around the house hoping he will ask you out. NEVER let any guy take advantage of you in this way. If they even get a hint that you are one of these young women that will sit by the phone or wait around for them to decide when to turn up you are in for a lot of heartbreak.