A lot of people (predominantly alloallo people) sadly treat aromanticism like a joke, I for one blame ace discourse on tumblr.
As for tips, I'd recommend asking them to stop with the jokes, if they support you they'll understand that they're harmful to you, your identity is just as important as theirs. (also, if they're not aro then it's not their place to joke about aromanticism? they should know better, especially if they're part of the community)