yeah - that stinks! but from what i've read in your other posts, your kids will both notice your absence and miss you significantly. it sounds like you have a very good relationship with your son and that he loves you a lot. i know that doesn't make the hurt about being excluded any less. but it is much more important. to both of you. i had lots of family birthday parties - but after age 3 i never had a loving father. i hope you can cherish what you do have - even though it is not what you wish you had - or what you deserve.
We are often troubled, but not crushed;
sometimes in doubt, but never in despair;
there are many enemies, but we are never without a friend;
and though badly hurt at times, we are not destroyed.
- Paul, II Cor 4:8-9