Should I drop it or reply

I found out someone who use to be a good friend of mine passed away yesterday. He was young. Anyways as I was reading the post and looking at pictures a good memory of one of the last times I saw him popped up in my head so I wrote it in the comments. It was short and simple : "when we would hang out even if we were in the same room we would text each other and it would confuse his mom. " so underneath guys older sister( I never really meet) wrote inappropriate. So it's rewrote it with more detail saying when we would talk to his mom or other family we would also be talking in text. His mom asked if we were, we said yes and she thought out teenage antics were funny and confusing. Then I wrote that I edited it, that it was never ment to be inappropriate. It was a good memory and one of the last I have of him. She write back that she liked this edit better but find the other inappropriate. It progressed to her saying that I was offending his whole family. I told here that the it was never suppose to be a negative one or inappropriate. I told her she may not remember me cause I only saw her maybe 5 times but her mom does. That her family was an amazing family, a breath of fresh air for me when I would come over because they are a normal loving family. That my times there ment alot to me and that moment was one of them, now it's been made into something bad. She told me his mom does not remember so now I'm just causing issues and offending the whole family and if I wanted to talk more to message her. She deleted all the post or I'd screen shot it.

I am not going to message his family (mom , etc). It is not something she should have To deal with. I doubt his mom is behind Any of her comments she is one of the sweetest moms I have ever meet. The sister has issues which is why I never seen her when I was a teen, I am assuming this is why this got so out of hand

My issue is I don't want will's other family to think of me in the way she is portraying me. I know she probably won't change her mind and I don't care. But his dad, sister and mom were great to me and I don't want them to be grieving and feel like I am adding or causing issues. It's upsetting to me someone is creating thier own opinion of me that is completely wrong.

Should I private message her and try to talk to her or leave it alone and apologize in person in December when I go back to Washington to his mom and explain everything?