exH has got the arse because i will be attending parents evening with my DH and not him.
i have told him i will let him know what the teachers say but apparently that isn't good enough, he wanted to come.
my opinion is that it would be downright weird to attend a parents evening with my ex, we get on ok and no one can replace DC dad. but dh, me, and our DC are a family unit now so surely its more normal for me and DH to go together? 
or AIBU? maybe i am! what do other parents do that are divorced from dc dad and have new partner?