Big black vs little white

Hi, I think the most humiliating thing my girlfriend has done to me is to ask me to buy a dozen Magnum XXL condoms for her boyfriend. Having me watch her fuck her boyfriend that has a 10″ dick thinking he has the condom on and hearing from her that the condoms were too small to fit him later. I saw the un-opened box of condoms on the nightstandBig black vs little white