I genuinely have no idea if I'm aromantic or not because I don't think I understand what a romantic relationship actually IS or why it's different from being best friends. You can fuck or not fuck in either. It's not a question of exclusivity because romantic relationships can be poly and/or open.
Is a relationship a romantic one simply when the participants decide it is?
(I reckon I'm definitely 'romantic' in the sense of 'likes participating in gestures that are commonly called romantic'.)