Heyy guys. I have this really sweet boyfriend that I love and I know he loves me too.
Just recently he's been paying loads of attention to my friend, and they were on msn together. I don't know what they said but she insisted that she doesn't like him when I asked. Then, we had to do some activity with guys, and she paired up with him. I really don't know what to do, am I overreacting? She knows we're together though. My boyfriend even started a looong conversation on my friend when we were texting, and he's a really fast texter but he was taking a long time, I think he was texting her.
What should I do?

Nothing. You know he loves you. I'd leave it at that.

It appears you answered your own question here - https://www.askmehelpdesk.com/middle-school/boyfriend-looks-girls-better-way-than-me-475017.html

Take care it might be a sign