I think their relationship was more complex than a "he got played" situation , maybe at some point she felt something too, because he did question what he was to her, even though it was all in the past he was still thinking about it so there's definitely some unanswered questions and feelings left behind, he wouldn't have questioned it had he not cared at all, since he already has Altair.
And honestly ch.93 was a conflicting chapter for me because that is when he questioned his importance to her, but in the same chapter, he stated that he would choose Altair again and again. So now I'm curious about his feelings, and I actually like the complexity of the relationships in this story, I just don't happen to be a fan of y'know past relationships, loose ends and shi because it makes me anxious loll
Not something to see in black&white, he can definitely love Altair wholeheartedly while still figuring out what to make out of his past, which is why I'm more curious lolol
If there are any novel readers reading this, do you have answers to my questions hahaha

It's been almost 2 years i think since i last read this, can anyone explain to me his actual feelings and former relationship with the women they help captive which i think is the sister of his teacher, I can't reread it yet lol so I just need assurance that he did not harbor unfaithful or lingering feelings towards her. I guess it can't be helped if they did have a past, so long as it does not interfere with his present relationship