I said something i shouldn't have said?

so the other day we were in class playing never ever have i...blah blah the 10 finger game. so it was my friends turn to say never ever have i nd i slipped up nd said never have i snorted choclate cocaine. so heres the deal this is something i did in the first semester of school got in trouble for it it was a huge deal. it ended up being snuff/tobacco, not cholcate cocaine because it dosnet exsist. but my friends are always joking about that to me becuae they think its so stupid i believed it was choclate cocaine nd for doing it. so i mess around with it too just jokingly nothing to hurt anyone. but i had forgotten that the girl in the class was there that day nd she was the one would i would do it with nd she was the one who had told me it was choclate cocaine nd i believed it. so when i slippled out nd said that just joking around i think she took it offensive as if i was making fun of her. I FEEL SO BAD. becuase i didnt want to think i was making fun of her i really wasnt i was doing jockingly wih my friends towards myslef nothing to do with her. we were still friends after the whole getting in trouble for doing snuff but we really didnt hang out that much anymore. so when i said that outload i turned around nd i saw her nd i was like ****! i forgot she was here! she gave me this bad look...but during the class she kinda talked to me but not really. i felt so badd:(( idkk what to do!!! shes pregnant now nd i really dont want her to be mad at me thinking i was making fun of her cuz i really wanst it didnt mean anything towards it wasnt even about her. what should i do about it?? plaz help! thank u so much.