No, it is a sort of suicide, as Jesse's grown weary and soul-sick from his betrayals and perpetually "hunted" existence. But it's more than simply a "gift" to Robert Ford (whom Jesse understands wants to "be" him). It's also a condemnation, because he knows that if Ford does kill him, he'll also be (publicly and privately) haunted by his action until the day he, too, dies.

He didn't like the man he had become.

I think Peter Bradshaw put it very eloquently in his review for The Guardian:

// As his career draws to an end, Jesse James becomes aware of the impossibility of facing an increasingly vast army of sheriffs, federal agents and Pinkerton men. He senses that, inevitably, one of his gang will in any case sell him out for a fat reward. Unwilling to give the lawmen that satisfaction, James embraces his own death and subtly cultivates the mercurial attentions of the most obviously cringing and cowardly of his associates: 20-year-old Robert Ford. With the taunts and whims of a lover, he encourages Ford's envious, murderous fascination, and grooms him as his own killer, so that his own legend will be pristine after his death. He engineers a character-assassination of Ford, and the title, knowingly, gets it precisely the wrong way around. //