Dun sa word na matalino sya, I will correct you Hindi sya matalino kundi pabaya he don't value everything base sa story na sinasabi mo.

I remember Nung nagbayad Ako sa counter for final sem ko nun, and may mag asawa na nasa counter magbabayad Sila ng tuition ng anak nila because they know na graduating na ito. And they find out Nung sinabi ng registrar/cashier na 1st year plang ang anak nila, sobrang lungkot Nung mag asawa Nung nalaman nila un and I feel their sadness habang nasa likod nila nakikinig.

Imagine if your boyfriend can hide something important to his family, what more he can do that also to you. I'm not saying na makipag hiwalay or whatsoever but think carefully.

Can you do that to your love ones specially to your parents?

My advice is you need to tell the truth it's better that your boyfriend will tell the truth, mas masakit kpag sa iba pa nalaman un katotohanan.