Is he acting nonchalant?

So we are long-distance and we have been texting a lot online for 8 months now. It was going fine he was showing me he really likes me and knew everything about me, he was even saying that he liked me more than l liked him. We did call a lot but he said something about i got some confidence to call you and he doesn't really send a lot of face snaps like i do. But to be honest, in may I made a mistake where i accidentally flirted with a guy he knew and since then he kept on saying he is fine with it but in some way he changed a bit. He would still text me but now i am the one putting in a lot of effort, he does send me Instagram reels asking if we can do this or snaps and now we don't call anymore. I would send him stuff like can we do this but before he would say yes but now he says I don't know or no and then when i get annoyed he be like i will take you to the place and I was only saying no for no reason but then continues to do it and rarely says yes to stuff. Also, he does talk to me about his football club and how that is going as before May we watched a football game together as it was his football club playing, so I thought maybe he was going back to how he was before everything went down. This week, I thought let me do something fun on text ( it was a sort of game) and he did answer some questions and then after went idc for this anymore. I just left him on open because I just feel like he is being nonchalant towards me.

Is he acting nonchalant?
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