Hey, that's a tough dilemma which you can really only solve yourself. If you tell him, he might be mad, upset, angry... It may or may not be the end of your relationship. If you don't tell him, and he finds out, he'll most likely be mad, upset and angry as well. If you don't tell him, you might carry a sense of guilt with you for a long time. You might want to make a list with these and other ups and downs to telling him you can think of. I don't know your boyfriend, so I can't tell you what will happen if you do or don't tell him, so a list like this might help you make a decision. Good luck.