Yeah a lot of the above. To go even further, troll romance is a parody of the very idea of romance itself, and so many people took it seriously that leprechaun romance shows up to re-parody it later on. You're supposed to see this byzantine, arbitrary society-and-government-enforced system and go "haha, that's so ridiculous!" - and every single thing that makes troll romance arbitrary and dumb applies to human romance in the exact same way. You're telling me you pick one person to mate with and live with forever and assign them the heart from playing cards, and this creates a binding religious ceremonial agreement that grants you government favor that can be retracted if ever broken for any reason? Human romance sure is weird!!!

An aromantic person like Jake might feel that he's just broken, but the truth is deep down inside he just isn't bound by this stuff, and his friends give him shit for it because they are stuck deep in their homes on the matter.