<human>: My son was having an embarressing health issue. He's only 7. Out of the blue my nephew who is 18 posts about it on FB. I deleted it the first time but then he did it again a 2nd time. Meanwhile my we live in another state from my nephew and his mom/grandma. so I know my son hasn't done anything to provoke my nephew. We just saw my nephew the previous weekend to celebrate his birthday. He was really loving w/my son cuz thats his only cousin and he has no siblings. So when he posted this I got really upset and didn't know why he would try to embarress my son like that. So I called my sister to tell her to get onto him and she reacted like it wasn't a big deal and that we should just get over it. She also started mentioning how maybe my son shouldn't be on social websites at that age. I just wanted my nephew to apologize to my son because he was very sad about it. so then i called my mom to see if she could talk some sense into my nephew. My mom responded "your nephew removed his comments, you've taken this way out of proportion and your son needs to realize not everyone is going to be nice on social websites." Except my nephew didn't do anything. I deleted all of his posts. So now I feel like cutting all of them out of my life. I mean this was a really mean thing to post on this social site for everyone to see because its embarressing. I mean my son's little gamer friends saw it. Nobody is apologizing and nobody really sees anything wrong w/what he did. I dont know what to do though. me and my son feel really hurt right now. I'm super hurt by my mom. i know I should cool down but what do u guys think?

Could you distill the essence of the text into 1-3 sentences?
<bot>: 18 y/o nephew posted embarressing info about my 7 y/o son and no amends have been made.