Hmm I wouldn’t per se say I was feeling broken, but most definitely somewhat different. I am not entirely sure but I think not really being "in love" is socially accepted, especially if you are an adolescent and your feelings won’t be taken seriously anyways. I think the main reason why I felt different was based in being ace. It was weird to always question whether I was straight or gay since I'm not attracted to anyone in that way.
(-> I am in no way trying to say you are no aro enough because you aren't ace or anything!)
And yeah I would assume people who aren't as in tune with themselves or simply don't know the term probably don't even realise they are Aro. Oh and it's probably really common not to realise it if one isn't ace. I am actually really impressed, if people figure out they are aro while being sexually attracted to people.