A loving (but immature) father is committed to co-parenting his two kids with his very-together ex-wife. While his misguided fatherly advice, unstoppable larger-than-life personality and unpredictable Internet superstardom might get in the way sometimes, for Marlon, family really always does come first - even if he's the biggest kid of all.
They mention the death of a dog in S01E07, but at the end of the ep, there are some howling and barks, implying that the dog is alive, but living with the coyotes.