Re: The Cure from X Men The Last Stand: mentioned in Wolverine...
Wolverine didn't want to give up his healing power, and he didn't want to die. He had retreated because he didn't want to hurt anyone else again, and he thought he could do that by becoming a recluse and keeping himself from getting close to anyone again.
He flat-out refused Yashida's offer, so it's not what he wanted.
The cure doesn't work anyway, so there was no reason for him to seek it even if he wanted to.
”We live in times when hate and fear seem stronger. We rise and fall, and light from dying embers: remembrances that hope and love last longer. And love is love is love is love is love is love is love cannot be killed or swept aside."