My 7 year old daughter, who we will call Jessica, came over to my house and told me that a special needs kid had a crush on her at school. I told her that she should be nice to him because it is the right thing to do but he is going to have a hard life growing up. I told her just tell him that she likes him as a friend.

Flash forward 2 years and she comes over to my house one day and said the boy that had a crush on her was touching her inappropriately. I told her it's not OK and that I will take action to rectify it immediately.

I dropped her off at school and called up the front office and let them know about it and that I wanted to talk to someone. They told me the principal would call me shortly. I also text my ex-wife, we'll call her Kayla, and let her know about it. Kayla proceeds to kind of flip out on me.

She says "Why didn't you call me first? I've been talking to the school about this for a month." Our daughter is forgetful so her neglecting to tell me something isn't out of the ordinary, but since I'm pretty close with her I was a little surprised she hadn't told me about it.

At this point I was pissed. This woman knew about this for a month and didn't have the common courtesy to let me know about it. I pointed out that I let her know about it within a few hours of me knowing. Why didn't she tell me? Her reply: "you didn't ask." Wtf? Who would ask about something like that? Is "hey how ya doing? Been sexually assaulted lately?" a new common formality that I am unaware of or something?

Then she proceeded to say that the other reason she didn't tell me was because "you're an asshole." This woman is such a bitch that I walk on eggshells around her and usually try to kill her with kindness. I have no desire to argue with her or anything else anymore, it was kind of a main point in our divorce, so I know this isn't true, but I was so pissed that I kind of snapped and told her: "You know what, Kayla? We got divorced so we wouldn't have to talk to each other unless it was about our child and you're such a joy to deal with that I got Jessica a cell phone for Xmas just so I wouldn't have to deal with you when I wanted to talk to her. You're so easy to communicate with that it's worth over $100 a month for me to buy a way to talk to her without going through you." This was probably not the right thing to say but I was livid.

The principal called me an hour or so later and was very apologetic. I think he was expecting me to flip out and curse at him or something, but I'm mature enough to know that yelling at him wouldn't solve anything and I just wanted to know what was being done to address it. He then told me all the measures he was taking to make sure it didn't happen again such as moving the special needs kids' lunch period/recess and that it seemed to be working. I then asked him to please tell me about these type of things in the future because my ex-wife wouldn't do it. He sighed and said "she's one of those" and kind of left it at that. We've exchanged emails and now I have a direct line of communication with him.

So you tell me reddit. AITAH for this?