I just turned 17 and my husband was 25 when we met, 8 years ago. I told my parents he was 21 to soften the blow, and they eventually found out his true age on our wedding day 2 years later! I have 2 sons to him, and he is the best thing in the world. He is mature, romantic and has got over that foolish age where men have to fight each other do stupid things to prove themselves! If your both happy and there is something serious between you, then keep telling those little white lies until the moment is right to tell your mum. By then she will probably have met him so much that he will have grown on her! Thats what happend to me!