Richard Watterson/Relationships

Gumball
Richard loves his son, mainly because he can relate to him in many ways. Even in maturity as its possible he named Gumball in first place in laziness and nerdy interests as well. He often teaches him odd ways to deal with bullies, and treats him more as a brother or a close friend than a son. Despite his questionable parenting, he still clearly loves Gumball.

Darwin
Richard seems to care greatly for Darwin. In "The Goons" he lets it slip that Darwin is apparently his favorite of his children. He then immediately tries to cover this up by saying he's simply his "favorite fish".

Anais
Richard loves Anais of course, but often butts heads with her intellect. On the advent of Anais attempting to be dumb for a day, she replaced Gumball from the dumb trio, thus becoming Richard's second favourite child. Despite Anais having to clear things up or voice her opinions Richard was willing to even get a job to help his "little girl".

Nicole
Richard loves his wife, just as much as he fears her. He didn't have much courage when they were younger so obviously Nicole pulled most of the moves. But he still loves his wife, mainly because she was one of the only people who approved of him.