idk how to apologize to someone ;-;

basically i was at my friends house with another mutual friend and she had someone with her because this wasn’t really planned she was just in the area, ive never met her friend before and it was late so we were all crashing at our friends house. i ended up clinging onto the mutual friends friend and im a kind of aggressive sleeper..
i somehow dislocated his ankle more than once 🥲 he has a sort of bone thing so he just set his ankle and failed to mention this to me until the next morning. he seemed very ok with the fact i literally fucked up his bones but i feel really bad but what do i even text him to apologize. this was saturday-sunday its monday now

edit: we hung out again and he explained he doesnt feel the pain just the sensation and told me some stories of times hes not realized things were broken it was a lovely conversation and im autistic so im glad it was so easy to talk 🙂