You do not say how far in the past the affair was, or who has possession of the records. if it was far enough in the past the cell provider may no longer have the records and it becomes a moot issue. If, on the other hand, the records still exists, yes your spouse can subpoena them.
if the records are in your possession, and you destroy them to prevent her from obtaining them, you may be subject to some serious sanctions, which may be worse then letting her have the records.
Answered on Jan 16th, 2013 at 2:27 PM