I don't see much talk on this app about all of the forms aphobia can take so here's a thread on it:
First of all, the whole "maybe you just haven't found the right person yet". Plenty of aces already struggle with questioning their sexuality because a lack of attraction is often harder to pin down than attraction to any particular gender. That sort of remark doesn't help.
I also shouldn't need to say this, but trying to force yourself on someone who identifies as ace is really NOT OKAY. Corrective sexual assault happens to aces too.
And it's also not okay to pathologize ace people. Don't say stuff like "maybe it's a hormone issue" etc. Our identity is not due to some mental or physical illness, it doesn't need to be fixed.
Things like "wow you must never have to worry about relationship drama" are really insensitive too. It's just like saying the same to a lesbian or gay person.
Acting like aces don't face any oppression or hardship also really sucks. Yes asexuality is technically less immediately visible than other sexualities but never having sexual relationships also gets noticed and stigmatized in society. Sexual attraction is seen as the default.
Any form of shaming someone for not managing to get into or not wanting to get into a sexual relationship in the long term is a type of aphobia, even if the person in question isn't ace.