For the next two months, do something small, random and romantic for her at least once a week. It doesn't have to be much: just a bunch of flowers, write a poem, take her on a little picnic. The little, but personalised, things generally show more affection/love/romance than the big events. It probably won't make up for missing the anniversary but will show you care. And if you're still together in a few years time, then missing the 6 month won't look of feel so bad .
Cheers
Kvedulf
Cheers
Kvedulf