Hi melanie - your parents are entitiled to unlimited reduced rate tickets at 10% of ticket price for a standby ticket or 50% of ticket price for a guarenteed seat, also 6 other people (friends or family) get one reduced rate ticket per year, but you could use those 6 tickets on one person if you know what I mean.
Hope that helps you
p.s. of course you can stay in hotels with your boyfriend lol