You can go ahead and file your return without her and file an amendment later or you can just WAIT (only if you know you do not owe the IRS or state). Waiting will avoid the extra charge of the amendment. You do not owe the IRS or state, you are not late with your return as they owe you.
I always do my in the summer as I know I am due a refund and I get it with a small interest.
