It really all depends on what a person values most. I guess bcs I wrote from both their perspectives, I sympathise with Nanami a lot more than the readers seem to 💀 which makes sense bcs I have the advantage of his thought process. Gojo has much the same view as you. He sees Nanami looking tired and sad and he tries for a second time to offer him something more but Nanami refuses. It's got to hurt. Rejection is bad enough but rejection when you're someone like Gojo? Unheard of. Idk if Nanami was even all that convenient. He could have gone to someone with less baggage.