That would be swell, but highly unlikely. I'd create my own Utopia, attend Comic-con, and do what I want. Though I'd eventually get bored and just end up looking for survivors.

I would like to do as many women as possible, live in a castle and do more women.

This is really going to take some thinking

Gentlemen, remember that if the earth was to be repopulated  having sex would not be a viable option. That would be wasting a lot of a one of a kind resource. Repopulation would have to be done the scientific way

Well I would like to know if anyone was still alive on the planet, I would probably spend a (year) or over traveling around the worlds searching for other people. That would be TOP priority if I was the last guy on earth. Searching for different friends and family would also be important. 

I've never heard of this comic series? Is this a "hardcover" or is it, issue-by-issue?  
 
I would just have fun for awhile. I would first visit the Whiskey Media office. That would be cool. 

It was pretty apocalyptic in the book...
I mean, secret agency wanted to kidnap him, terrorist organisations were after him, some wanted to "keep" him, other kill him...
The dream (well, apart from the "every other male dying" part) would easily turn into a nightmare!

In Y, Yorrick is shown to be a substantial loner (or lacking in important relations geographically proximate to himself) which expedites all of his adventures.  What few connections he does have are so extraordinary that Yorrick is afforded considerable autonomy.
 
I suspect, in my real life, that the death of half of close my friends and family and the impact on the remaining half and myself would be all but crippling to preclude such adventures (and decision making)- at least for the short term (certainly humans adapt to even incredible horrors).  Lacking a mother who serves as President of the United States or a skilled bodyguard companion, et al, decision making would probably be dictated more by others [and the state of society] than any of my own choices. 
 
But for the sake of discussion, breaking down some of the options (taking out whatever consultation one might do with one's god in prayer, one's remaining friends and family, one's scientific considerations, etc) they're broadly to (1) die, (2) run & hide, (3) live "normally", (4) exploit the situation, or (5) fight extinction:
 
(1) Electing to die (whether by your own hand or getting into a shooting standoff with all comers or what not) is a fatalistic waste to me.  You may not be the last of your gender but certainly you're the last of your sex and that has significance whether you want it or not so there would seem to be some duty or responsibility tied to that even if not to repopulate. 
 
(2) Electing to run appreciate the value of your life but not an active crusade to repopulate or investigate the harm.  It's generally a prolonged death but you might leave some quasi-immortal work or act in the meantime- a book, a piece of art, or an act of terrorism [if so inclined, myself certainly not].  I don't believe I'd opt for this without some sort of empirical proof that otherwise fighting is "hopeless" but I could understand if some people elected to avoid the issue.  If simply running and producing nothing, however, that's unacceptable to me. 
 
(3) Trying to live "normally" is improbable but that has its own value and integrity... I supposed I'm not romantic enough to believe it possible with everything else happening so I wouldn't consider it a real option. 
 
(4) Exploiting the situation seems like a male thing as "last woman on earth" has substantially different implications and assumptions than for the last man.  While I imagine it's possible there is some amount of power, real or imagined, one would wield in that situation... it would not be enough to stave off self-loathing and contempt for such use for me (or much less the contempt of one's significant other!).
 
(5) Finally, attempting to fight extinction could come in many ways from self-help, scientific pursuit, co-ordinated / authoritative effort, uncovering the cause, exploring an alternative, etc.  Which brings us back full circle to Yorrick's extraordinary connections, resources, access, and adventures which I doubt are within the wheelhouse of most persons.  But how you fight and if you fight, will depend heavily on both the state of "post-apocalyptic" society and your values and expectations- do you trust science, government, church, the public, the rich, the press, etc.? 
 
As the situation is completely absurd I don't think there's a "realistic" answer with respect to fighting it and- like real fights- the strategy is fluid and fact specific... so I concentrate on the emotional impact which would be more reliably predictable and it would be considerable and significant for me.

so many people would tell me that this was such a great series and i pick up 123 of the trades and i just could not get into it !!!!

" @SUPER-MAN 23 said:

" I've never heard of this comic series? Is this a "hardcover" or is it, issue-by-issue?   I would just have fun for awhile. I would first visit the Whiskey Media office. That would be cool.  "

10 trades and I think they're releasing the hardcovers "ultimate" collections now.  Read it. You want regret it. A lot of people I know that don't ever read comics read that and loved it. "

I'd do all the stuff I've wanted to do but couldn't because society isn't built that way. Probably run around in the buff and pretend I'm some sort of animal god for a bit. Who knows? I'd resign myself to the fact that I wouldn't be a forced breeder. There's no way you could rebuild a viable population from a single Male. There wouldn't be enough variation, and in a few generations everyone would be bucktoothed and have faces like a cats arse.