Beyond me – at this point – but I would encourage you to join the conversation.
All the major commentaries on 2 Corinthians suggest a sequence of events in Paul’s interactions with that church. If you can see an aspect in which a published sequence is more convincing than mine, please explain it in the comments. I will then send you a free 2 Corinthians commentary of your choice if yours is the best (or only) comment!
Join it here!