and two parents. But compared to how he grew up that's something he does notice... due to the contrast to his upbringing it's naturally going to stand out and easily become an exagerrated issue in his mind.
To most people your upbringing is your reality and you think it's everyone else's reality until you've moved away from home in many cases and realize there are different dynamics outside of your realm. Going to school with a significant amount of people who come from well to do, two parent homes is so foreign to him and his reality that it becomes glaringly apparent.
Not to mention he's black and non Mormon. That really does take a very mature and humble person to deal with at BYU.
I grew up in an active LDS two parent home but neither parents or grandparents were educated or remotely affluent. It took me many years to relate with educated, well to do white Mormon people because my upbringing of living in a blue collar community was so different than their upbringing.
I totally understand what he notices and how he probably feels left out because he can't relate. Try to have some empathy, it's honestly good for the soul.