Originally Posted by chickenpotpiesarehot

It means he knows she loved him and would wait for him without changing her number. It means he found his constant and knew he wasn't going to die a horrible death like Minkowski.

I think it also means that the rest of Desmond's life was pretty much planned out for him and Desmond--a coward--woudln't really have to make any decisions. Nor did he have to feel ashamed for failing so many times in his life. It was a pre-set path. Not his fault.

And he had a life with Penny to look forward to after the freighter.