DSS might need some extensive dental work done. DH's ex took him to the appointment, called DH after and told him the outcome 4-7k. With the view of I'll send you the stuff let me know what you want to do. (ie how you want to pay for it) We currently pay generous maintenance, school fees and anything extra on top. Everyone works - shared custody. Completely appreciate he needs it done, no issue there. But a bit perplexed as to why it's up to us to find the money. Not for her to use the maintenance or for us to share the cost. AIBU ?