Don't run mum down as in scummy mummy, but just step out of the way. The only things to discuss are those of mutual concern, health issues for instance. Ano don't tell him to honor his mom or his mom loves him, it's his view of it that counts.
Take the tickets and you and your fav sis go to the concert. Have a great time. I would just let that be as it falls. No drama.
If mom can't be involved with her son that's not your job, she is a parent too.
V
Freedom is just another word for nothing left to loose. V 64, WAW
