Sorry I disagree. I think the group leader has proposed a "solution" which gives sz the upper hand.
Are you SURE they aren't pally op?
Why should YOU be the one not going to group if she's there?
Harassment going on for months, creating tension at a children's group, bordering if not actual stalker behaviour and STILL not banned? Wtf?!
I think you may be well advised to find out if group leader and sz are related/friends.
This sounds like a charm offensive used to manage you out of the group.
Your decision whether to allow that to happen but I just thought you should be aware that might be the case.
Any way you can find out if group leader has had a cosy afternoon with sz too?
PLEASE don't assume group leader is "on side" because I for one am not convinced. I've come across situations like this and been burnt myself - by trusting people in a similar position to the group leader only to learn the equivalents of group leader and sz were good friends but I wasn't aware.