He has typical old man hair, that spikey look is too cute. Hekomi, I don't know how long he has, but don't count him out just yet. Some dwarfs get to 3 and beyond. He looks pretty alert. He may be wobbly and sleep a lot, but otherwise, he looks pretty good. He also isn't a bad weight. What I do with the old ones is just go day by day and enjoy each one.
Is it my imagination, or is he getting attached to your SO?