I feel terrible but I cannot help it

A friend of mine is learning Swedish, which is great. But I feel so terrible, I cannot stop laughing at his pronunciation. I'm such a bad friend no?!

I mean he tries his hardest and I laugh my ass off! XD

But in all..he know I don't mean too bad about it. And he said he'd try his hardest from now on... reason why?! I agreed on treating him on a travel of his choice the day he will be able to speak Swedish freely. Stupid of me...maybe?! Then again consider the current state it will take a long time so I will be able to save some money until that day comes!? (^^;;)