If he is a good friend, you can tell him that he can't be beat and its a split pot.
If he is a really good friend, you can take it down and call him a sucker
Usually, I'd say the pot is all yours. But since you know this guy, and its at his house, I also say its OK to split the pot with him. After all if he is just learning and he is your pal, you should look after him.
But no, you're not wrong to keep the pot. But for pals new to the game, I would have chopped it. Besides, it may keep him coming around and playing cards with you.