Allo

Asking a person to work on themself to have more sex seems natural and intuitive, but imagine asking the allo partner to be celibate.

Source: wiktionary

However, being aro adds another layer of urgency. As we get older, a lot of our monogamous allo friends will find their life partner, get married, and have kids.

Source: wiktionary

I would say that it'd help so much if the ace characters would be explicitly acknowledged by the creators, but this doesn't always fix things. In the case of Jughead Jones, his asexuality and aromanticism were explicitly stated, but that didn't stop people from completely disregarding it, to the point where most fanart and fanfiction of him makes him allo.

Source: wiktionary

Allos might feel infatuated with a new acquaintance or be more attached to their best friend than to any romantic partner, yet they can deny the possibility of romantic feeling because of the lack of sexual attraction. Allos can wave their hand and say, "There are people I want to sleep with, and I don't want to sleep with you, so it's only platonic."

Source: wiktionary