Stay at mmu or go back hometown?

Today , my father call me and ask me :'' Ah yen , this week either you want go back hometown or stay at MMU ?'' After i consider a moment i said with his : " Ba(father) , this week i cannot go back hometown because i have exam at saturday , therefore i need to stay at MMU ! "
Before close the phone , my father reminder me must take care yourself , sleep early, and remember eat oh !....After i listen this , i feel so touch!
Father , thank you very much..i love you !i much study hard to get a good result because i dont want make you feel disappointed with me !

I use the "Argument by Elimination"

"Either stay at MMU or go back hometown,
Not go backhometown,
Therefore stay at MMU"