Exposed

I need some advice… I’m 16 right now I had dated this boy about 9months ago but I ended things after like 2 months of the relationship, during the relationship I would send him pictures (nudes) not full on tho maybe like my top half naked or bottom half naked nothing too much. Now I just found out his friends sent one of the pictures to a group chat that one of my guy friends are in, he immediately left though he’s not like that. When I met up with this friend he acted like nothing happened maybe he was shy to tell me but I feel so disgusting, pathetic, stupid, and embarrassed I didn’t even know they did that. A friend of mine told me about it today… it happened yesterday I don’t know what they’re gonna do next, my anxiety is through the roof I feel so sick and numb at the same time I don’t know how to wrap my head around this.