Deckard and Rachael Photos

I agree that his voiceovers are just one side of their story and it's true that Deckard isn't the most cheerful guy and it's understandable that it must have been difficult to live with a man who comes home with blood on his clothes once in a while... In the end he looks like quite embittered about women.

You can also take into account that Deckard may be a replicant...that also may come into play regarding his "wife". Was she human? Replicant? Furthermore--and this is just speculation--did she even exist..? Was she just an implanted memory? Was her leaving Earth with another man just a planned scenario to make Deckard more cold-blooded unsympathetic, in order to do his assassin job better? Sure, he says she left him, but we're given such little info about this 'ex-wife', that it's really open to interpretation.

Or perhaps, his wife was--if you'll pardon the verbiage--'provided' to him: all of their marriage backstory was an implant, but she was a real person (or, perhaps, a replicant) when Deckard was brought 'online'. But--and this is still going with the Deckard-as-replicant theory--he couldn't handle the emotional burden of marriage, and she was allowed to 'leave' him. Let's not forget what happened to Roy and the others, when "their own emotional responses" came into play...the main difference is that Deckard had a license to kill (even if they were only replicants), the others didn't.