Boston Ferns thrive best in 15 to 24 degrees Celsius. They can be pretty though plants and I don't think that the temperature in your room will necessarily kill it. It might, however, be a good idea to find a way to lower it down a few degrees in order to provide optimal conditions for the fern to reach its potential. I would also recommend placing a tray with pebbles and water around your plant to maintain the humidity higher. This should help the Boston fern revive a little bit more.
