Sorry to bring real life into a fantasy discussion but the pacing doesn't seem sudden or rushed to me. You hang out with someone for a while, you share some significant moments and you make a pass. I get why it might seem too modern if people are hoping for a medieval courtly romance but I found the pacing refreshing natural.
I kinda agree with you, the reason why I say that it feels sudden is because it all happens at the same time even with characters you haven't tried with.
