I fed a muslim girl pork every day for almost a year

For context, i was around 7 years old in primary school. My best friend at the time was a muslim girl in my class. I obviously didn’t know about Islam and religious dietary requirements at that age. My mum would pack me a salami and cheese sandwich everyday. My muslim friend asked to have some. She really liked it and from that day on i gave her half of my sandwich everyday at lunch time. She told me she didn’t eat pork but 7 year old me had no clue salami was pork. Anyways she moved schools the next year and i’ve never seen her since. It’s been 12 years and i still feel so bad.