Karin, I think you have identified the problem. If you just say 'friends' and they push you, and you then admit 'boyfriend', that is when they will get suspicious. I always think it is best to be upfront.
Nancy - The crunch will be in December, but if they have any sense they will realise that Boxing Day matches are something special, and that is obviously why you will be coming back! And if you can show them your match tickets, all the better.
Look, I am on a mission to get you in, don't worry so much! I will e-mail you the fixture list as soon as it is out and you will have plenty of evidence that you are here for the footy (I know the boyfriend is incidental!).
Vicky