Should I get another bunny?

So I had two rabbits, Jinx and Ricochet, and Ricochet passed last week. They had been together their entire lives which were spent mostly in a shelter, until I gave them a forever home in 2010. She passed at the age of 12 and Jinx is the same age. I don't really know how to read his body language because he's always been a little anti-social.

He's finally coming out of his cage again and will let me pet him for short periods before he gets fed up and hides until I go away. His appetite hasn't decreased at all either. Should I think about finding him a new friend?

If he's normal and seems happy, you don't HAVE to. Now that he's an elder bun, he may not have the energy to keep up with a younger buddy anyway. You could take him on bunny dates and see how he reacts to meeting new buns!