Yeah, that is true in a lot of ways, but really, I think Rin may have known Obito loved her, even if it didn't seem it til Kakashi told her and how in the long run, he disavowed her confession because of how he was willing to abandon her and felt like scum for it.
The thing that irked me was how Obito's dies, and Kakashi, speaking on behalf of the friend who's corpse isn't even cold yet, tells Rin that Obito had always loved her, and the first thing she does is blow him off. She was literally like "Obiwho? Lol, Kakashi, let's talk about how
I feel." I felt it was really blatantly disrespectful about how she completely blew Obito off after he had just sacrificed himself to save both her and Kakashi. Like you don't have to fall in love with Obito or anything, but for the love of god just think about the weight of the words Kakashi just said before you pretend like the guy who just bit the bullet for you both never existed.
In hindsight, maybe I was foolish for not looking at that scene a little more closely since that scene itself was the perfect forshadow of how the rest of the series would go in terms of pairings.