FTM and fussy baby

My baby is 7 weeks old, and he has been abnormally fussy tonight. He's been awake since 7 PM, and cries whenever I put him down. He is constantly wanting to nurse, but he keeps fussing and unlatching. My supply is fine, and he doesn't usually have issues latching. But he's just SO fussy. I'm at my wits end, I've already cried out of frustration and I just don't know what to do. Please help me! 😢😩