I think you have hit a home run!!!! Unless you are only posting part of the story you could have very easily "jumped" him for his interest in going to see his friend and piled on about this concert. By offering an alternative, I think you may have disarmed him which is why he is now "thinking" it over. In the past, me thinks he would not have given it a second thought and scrapped the concert for his boy time.
Significant development in the sitch if you ask me. But, don't get your hopes up. Me thinks you buy the tickets, take the leap! If he decides not to go, find a friend and go yourself then you buy him a small token from the show. This is so anti-DB but it may be malleable enough for your sitch. But him something non-significant and tell him what a great time he missed. Not that you missed him or anything like that - but that he missed a great time.
One step at a time and I for one am proud of you if you fought your urge to use his indecision against him. Shows great restraint and great control! He will soften because of it....
Me: 33 jacka** whom lied, stole, cheated, and basically treated DW like crap for years DW: 29 kind soul who gave too much to me over the relationship
S7 S4
M: 7yrs Bomb: 10/19 Seperated: 10/24
The worst reconciliation is better than the best divorce