i think that if the guys loose interest its not yur fault its theirs they dont see what they have when they have it. guys are usually blind to anything good they have and tehn once they loose it they finally realize exactly how much they had. so screw them and dont loose hope on dating its only been 3 weeks u said thats now that long all u gotta do is keep your head up and keep looking go ut with differnet guys and have fun and if you really start to like one certain guy then try things with them. dont loose hope and dont give up until u find someone that you are REALLY interested in and is interested in you. your still young. it wont take you too long hun. dont give up.