I'm stuck, too, with my new MC. I have 95 like with him, but no hearts. I've gone to the hut and I keep sleeping on the floor, since when I try to sleep in bed with him, he likes me less. :( I've had the tavern date with him, but I can't get the dialogue to go to the hot springs with him. I don't know how to proceed...
Oh, I just went and tried again, and I got a heart finally! Instead of sleeping on the floor always and changing my mind when he asks, I tried to sleep in the bed with him when the option allowed, and we had the cuddle scene the next morning, and the message says he loves me more. :D For some reason, I thought we had to keep being coy and sleep on the floor. lol