I would say yes - but would that "me" actually be me? If he's in a universe where he's with our waifu, is he really me? I'm a loser who sits in front of a computer all day, and if that man has our waifu in his presence, then he wouldn't be on his computer all day. So, is he really me?
The me I know has his waifu in concept, not tangibility. Would I really take myself out (and thus the concept I've created) for someone who isn't really me? Hell no, I'm too selfish. I'd rather be with her concept, than have someone else be with her tangible form.
I suppose I have a very small threshold before I classify someone as not being me. My height could change a few inches and my hair could change color and I'd still classify it as "me", but a person who's been lead down such a different path to I, who is otherwise the same as me? I'd say he's someone else.
Now, would I limit my remaining life down to a year to spend it with my waifu - not some douchebag who is kind of like me, but the actual me? Sure! I mean, aside from HL2:EP3 coming out, it's not like I have anything different to look forward to. And if I turned that down, I'd only regret it every day.