Theoretically You can appeal the I-485 on your own, but your wife would be the one that has to appeal the I-130. However, if it is showing that the the I-130 was withdrawn instead of denied, then there is nothing that she can appeal. She can only appeal if it had been denied. There is no point in your appealing the I-485 because it is dependent on the I-130's reason for denial. Just by the fact that the I-130 was withdrawn(not denied), was enough to deny the I-485 becausean active I-130 is needed to process and I-485. I485 depends on I-130. You would have no argument in an appeal since the reason fro I-485 denial is due to I-130 withdrawal and not accusing you of fraudulent marriage, which would be much worse.
Actually at this point, you can resubmit the I-130 and I-485 all over again. As long as this time you remain together and not go through the same issues, it can still be approved without you having to see an immigration judge which will be a long and expensive process.
Good luck to you during this process and I hope this answer has helped you!
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