Moving on from possible heresy....
Santiago and the MC seem to be from the same mold, understandably. Even the bar scene seems to underline this.
Santi showed his immaturity when Emily told him about her pregnancy, and (seemingly) has continued on his irresponsible, hedonistic ways all the time. Now he's (seemingly?) married, but is (seemingly) cheating on his wife. Or at the least the marriage is not the happiest one.
Meanwhile the MC has (possibly) several girls he's stringing along and some he (possibly) has gotten pregnant.
What will the MC do, when the news comes out? Like father, like son? Is this a story about our MC learning to carry his responsibilities like a man or succumbing to a hedonistic, yet ultimately lonely life?
This ramble was fuelled by coffee and a break from work.