DS1 (10) is in the Fourth grade. In Kindergarten, he and H were in the same class. They were not in the same class again until Third grade, at which time DS1 decided to start pulling back from his friendship with H because H was always negative about things. When DS1 pulled back, H seemed to become more fixated on their friendship. He tried to monopolize DS1's attention, got upset when DS1 wanted to hang out with other peers. One day, H began to cry because DS1 wanted to play with another boy at recess. The girls in their class put pressure on DS1 and he felt compelled to become friends with H again for the rest of the school year. Their teacher noticed the friendship was problematic and told us that she would recommend that the boys not be in the same class again.
Fast forward to now. The boys are not in the same class, and DS1 told me that H had been 'a jerk a few times' but now has left him alone. Great. However, I just got a letter from the Lego Robotics club advisor about the club, which starts on Thursday. H and DS1 are both on the list.
My question is, should I email the advisor something about the boys' previous interactions? How would I word it? Should I suggest he speak to the Third grade teacher?
Thanks for any advice.