Why Am I Crying at 'Sister Wives'?!

I've never watched this show and I stop on it for 5 minutes and it made me cry. What's wrong with me?!
  1. A daughter tells all of her moms and dad (I guess?) that she met a guy she wants to marry.
  2. The dad gets up and hugs her and starts crying because he's happy for her.
  3. I DON'T KNOW THESE PEOPLE.
  4. Yet, I'm embarrassingly crying like someone kicked me in be shins.
  5. Hold me?