''Have you checked in for the outward flight online? If so, it would be courteous if you were to tell them so that they can take you off the flight and not spend time looking for you ... or any baggage. As FR is a point-to-point airline, you should be able to use the 'return' part of your booking because each sector is considered to be an independent trip, complete in itself.''
Ryanair spending time looking for pax - you must be joking! Slightly different of course if you've taken out a mortgage and put baggage in the hold.