@pencilsitter21 Hi. :) If you stand for the truth, you will never be wrong. Speak only the truth and don't afraid from the consequences. If your boyfriend don't believe you and you still want him as a boyfriend in your life, then try fighting proving that you are telling the truth. Unfortunately according to me and my experience if your boyfriend doesn't believe you, the relationship might end with separating each other for bad or for good (because you might meet better one). Ask yourself how much you love your boyfriend and how much you want to keep him? Is it worth fighting for keeping him and not losing him?
Everytime you doubt what to do, everytime stand for the truth and you will be always right and on the right path. Just don't worry and believe, that everything will be alright someday. Don't lose hope. Keep your head up. :)