Trying LRT - Please Help!

[motherof3]

Bare with me, I am going to try and explain this in short form.
The arrangements H and I have surrounding the kids are based on a 2/2/5 schedule. I get them every M, Tues, H gets them every W, Thur, and we swap every other F-Sun. Nothing about this schedule has been legally set as no one has filed D yet. To date this system has seemed to work well for both of us.

H has his annual Orlando sales meetings scheduled for the week of 2/22 (including the weekend) and will be gone for a weekend that he is supposed to have the kids. Prior to making his flight arrangements he asked if I would mind covering his weekend with the kids. I said sure and was looking at it as a positive to be able to spend more time with the kids. At that time I just assumed he would want the kids the following weekend and we would start up with the every other weekend thing from there. I just sent H an email to verify that assumption and here is his reply.

“I would love to, but I have scheduled my travel for work around the original plans. I am getting planned through May. Thanks for the offer though.”

Now I am PO’d. From 2/22-3/7 (two weeks) H will only ‘get’ to see the kids 2 out of the 14 days. That is bullsh!t. I am so upset for my kids. They love their dad and it will upset them greatly not to be able to spend their usual time with H. I know part of the problem is that I made an assumption in addition to a breakdown of communication with H. Being out of town for work is one thing, but not wanting to see them the following weekend?

I so badly want to respond to H:

“You are welcome. I was just trying to be flexible. It appears that you will only get to see the kids a couple of times over a two week span. In my opinion, that schedule doesn’t really seem to be in the best interest of the kids, but do what you have to do.”

Am I just overreacting? Should I even respond to H or just let it go and chalk it up as his loss?