I booked a RT flight from SFO-EWR. As it turns out, I plan to still fly from SFO-EWR, but plan to return DCA-SFO. To buy a new one way from DCA-SFO cost 250. To change my flight, it cost 325. Can I just cancel the return leg? Or what if I just don't show up for the return EWR-SFO return flight? One potentially complicating factor is I am traveling with my husband, who will take the return EWR-SFO flight. But we can split PNRs, right? My FF number is on both reservations, so will they see I'm booked on two flights at the same time and cancel both?

And I have no status.