Here is the story:

My wife & I were on the same PNR for our June flight (nw tix, dl outbound, nw inbound). I had some last minute business came up two days ago that might require me to change the outbound flight, so I went to nwa.com to get a quote for the possible change (only for my outbound flight, never went all the way, i.e. did not confirm any change).

Today when I checked our reservation again, the confirmation # has changed & it's only showing 1 passenger – myself, then I logged into here WP account & saw the original confirmation # is still there, but listed her as the only passenger. Called nw & was told indeed the pnr has been split & the csr couldn't tell me who changed it. Has this ever happen to anyone?