Once again can anyone tell me why did he get so desperate so suddenly??

I feel like he has always been desperate but it's overflowing now

It was never sudden lmao. He’s been saying he wants her every single time we got his pov, since the start

I know its not sudden but It was well controlled. Suddenly he went shik shak shok.

Well once you sleep with someone, you’re the closest to their body but feels like you’re far from their heart since all they want is to keep up the fwb. He likely got more anxious because she’s doing all these intimate things, making him have hope, and yet no confirmation of her feelings or their relationship comes from her mouth. Doesn’t help when the 3 bad guys are breathing down his neck, ready to plot stuff against him.