my diagnosis: borderline personality disorder. tell your mum's bf to f*** off out your room, put a lock on your door and tell your mum why. i suggest you stop teasing men by discussing and doing inappropriate things because one day, you will do it to the wrong one and a little girlie like you would not be able to back your way out of a situation like that. you need some counselling and maturing, young lady.....and stop attention seeking. just be honest about what you want: it is far easier!