I have noticed the last few days that my 13 year old son has been a bit down and not engaging with friends online and on the phone as much as usual. Tonight after much cajoling, he admitted that he was upset because he feels like he is being a bit left out of his friend group. He got teary and didn't want to talk about it much. He has a nice group of friends but I know that all kids can sometimes be thoughtless and do things that aren't meant to hurt but do. I think it mainly relates to times after school when some of them sometimes go into town or McDonald's or a park, and he has been excluded a couple of times. He was upset so I didn't really get to the bottom of it. A couple of girls have quite recently joined the group (4 boys) and he seems quite friendly with one of them especially. But I'm wondering whether this has changed the dynamic of the group. I know I am totally overthinking this, but he is our only child, who we had later in life, and it hurts me to see him sad. Is this a normal teenage thing that just has to be ridden out? Any input would be appreciated x