Advice please xx My son is upset about cubs because another lad has freckles

Hi, i would be really grateful for any advice on this as im stuck with how to help my son with this, i want to get it as right as possible ....

my son is 8 and has aspergers.  A few months ago my son moved from beavers (which he loved and everyone there understood him pretty well) up to cubs ( new people, hardly any he knew, new helpers, lovely but not quite as understanding as beavers). A few boys from the year above my son started laughing and Being mean to him, which wasnt dealt with well enough (this is the first time we've really experienced this) and the issue continued into school, where it was quickly dealt with.  Since then i was asked to go in and talk to the parents at cubs about aspergers, which i wimped out of because i felt too emotional about it (im often pretty confident about these kinds of things but i wanted to just hold back because i was unsure what to say, or if it was necessary).  My son hasnt returned since, but a very kind mum, helper and school worker, who knows my son has offerrred to support him on a 1-1 at cubs.  My son has been upset all week about going and tonight had a lovely chat with me about why he didnt want to return.

he said no one is now being mean to him.  The reason he didnt want to go back was bcause of 1 boy.  To cut a long story short it turns out my son cant stop looking at this lad because he has lots of freckles.  And its making my son struggle.  my son doesnt want to say anything to him because he doesnt want to hurt his feelings, but the impression i get, i think is thats all he can think about wen hes there!?

im reallystumped as to how to handle this as my son is adament he wont go back because of him.  we chatted..........he likes cubs, no one is now being mean, discussed differences in people, looked at my freckles on my shoulders, talked about factual sun freckles etc, becoming friends he wont notice them, try chatting to the lad, get to know him.  But he's stuck on it.

any advice or insight wud be greatly appreciated xxx (sorry for waffling on xx)