This isn't just a black love thing, obviously. Lots of fat, bald, dumbass dudes are being sponsored in Atlanta, due to the crazy ratio of women to men. Last time I heard, there were 80k more single ladies than guys. Earn is someone we want to see succeed, but he's also a jerk. He sleeps with another woman even though he's homeless. He misses several chances to do right by Van, sometimes because he's down on his luck, and other times because he's just an insensitive dick.
And even though we know their relationship status is technically up in the air (thanks to the hilarious "good for her!" Earn's mom says in the first episode after hearing that Van's dating other guys), we see her cry in the bathroom during the Juneteenth mansion party, and it's a little heartbreaking. It's nice to see Earn's look of worry when his airport co-worker Swiff stares suggestively at Van through the cracked front door on the final episode, and asks if, in the event Van and Earn split, it would "be weird." Sure, it looks like Van and Earn had themselves a little romantic roadside relief after agreeing to leave the wackness of the Juneteenth party, but as the series comes to an end, your heart is kinda beating for them to work it out, for the sake of dumbass men of all colors who are loved by some lady other than their mother.