Welcome to the forum, and congrats on the wedding.
Increased temperature will increase the speed of aging. If you think the beer could use some aging, leave it at cellar temps (50-60F). Your beer will still age at fridge temps, just slower. To preserve the beer's character close to where it is, throw it in the fridge.
Nothing bad will happen to your beer with the change in temperature, just an increase in the rate of aging at the warm temp.
In general, the beer itself should determine the storage temp. A high ABV stout would probably be better after 4 months of storage at 55F. However, an IPA stored at 55F for 4 months would loose a fair amount of its hop flavor and aroma.
What have you made and what is up next?