JapENEse?! JapANEse?

well...this happened in calculus class, it was an kinda interesting class at the beginning and became boring and boring... so one of the girl in my table suddently said:" hey u look like Jackie Chan! or Bruce Lee?!"
I was like:"err...no...not at all..Jackie has huge red nose, I would say more like Bruce Lee..hahhaa"
" So who is another Chinese KungFu or Karate guy?" another girl at the table asked" U mean Jet Li??"
"Yeah!!! I just know three of them"
"I know a karate guy..who is him?" A guy asked
"I dunno...Im not J-a-p-a-n-ESE" I answered
"What?!! said Japanese again~"
"J-A-P-A-N-E-S-E??"
all the people in the group laugh -.-"" "Dude, its Japanese! I love your asent~dont worry I still love u..HAHAHHAHAA"
So speechless for 5 minutes...so I said:" look, JAPAN plus ENE isnt sounds like Japanese?!!" "Yeah..you right and it does make sense, but we dont say like that..."
"English is F** hard!!!"
"Is allrite, you just made my day.." and that time.. classes done and we left with "Japanese" word here and there -.-""