I think browsing Dawn.com archives from the early morning of May 7 through the evening of May 10 could help us understand the sequences of events. But much happens in the background. We recall, the Saudi FM was in Pakistan during those days, probably asking Pakistan to restrain itself. But certainly much more diplomatic activity was happening.
My own guess is that India needed something to compensate for the losses to the Indian Airforce during the early morning hours of May 7, 2025. India kept needling Pakistan by sending drones into Pakistan, looking for any weakness to exploit. Finally India crossed certain lines by launching its most potent missiles, which must have surprised the Pakistanis because Pakistan, until then, maybe was working on the assumption that India wouldn't resort to that. Pakistan had not used its potent missiles against India--maybe never during that conflict. But Pakistan started to activate its Nuclear command authority as a warning to India (and to the world!). The big powers intervened.
Doesn't matter if my guess is right or wrong: The perception holds that India was humiliated in that war and no small thanks to Donald Trump for that.