Hello....
I don't think I remember my 21st birthday.......but anyway, I think
u should go there in peace, coz if u are upset, it's just
counter-productive, for everyone there. If u want something more
'wah' , then just plan something else/ add another event. That can
fulfill ur dreams. If ur BF can't take part, it's ok. He's not ur
husband yet anyway. Include ur friends/ family and make it
memorable, as u wish.