Can I really do this #5

[Dtrmned]

W is upset at me today.
She asked what we are going to do about school shopping last evening.
I said "I was going to take them out this weekend, you are more than welcome to come if you would like and we could all do it together".
W looked very hurt. She said "but this is something I have always done with the kids".
I said "you are more than welcome to do that if you wish".
She sensed what I was saying, that I wasn't going to give her money to go do this with the kids without me. Why should she get the joy of taking them out and spending money on them to make all of them feel good? I am not trying to be mean, but I feel that if I earn the money that is going to be used, and she isn't going to be a part of my life, that this is something that I should do with my children. They will find out soon enough how hard things are going to be. AND, the trust level between my W and I (both ways) is very challenged considering the situation and me giving her a bunch of money just wouldn't be advisable or I think even smart at this point.

She tried to expand the discussion to include more issues, I shut that down and asked her which discussion we are having as I thought this was just about the school clothes? She conceded. Wrapped up the convo quickly. 10 minutes later she threw a little hissy fit, grabbed her stuff and stated "I'm going to read upstairs in bed, alone".. I said ok,

Did I handle that one correctly everyone?