My ex wife and I are on somewhat good terms (on and off again, sometimes she gets mad at me for something then threatens to take me to court for child support, sometimes it feels like we're married again and happy) but able to be pretty good for the kids (both under 6)

Last night after having a day for the kids, she asked me to go play pool with her (something we enjoyed doing until there was a guy involved a while back that she ended our marriage over) I drove because she doesn't have a car and she directed me to a bar that I know they had went to. When we got there, most of their tables were being used for a tournament and the others were taken. We grabbed our drinks (she had been drinking earlier that day to help with a tooth pain she was having and I don't really drink anymore so I had a water) and headed outside to wait for a table. I don't remember exactly what was mentioned but I told her (sarcastically) that I loved that she took me to one of their date spots. She then tried to tell me where they actually went and I made the comment about their dates always ended up at his house and he would show her a "game" (something she tried to tell me they did while we were married and I knew they were messing around, whole other story) she got upset and told me to just take her home. I agreed but she used her card to pay for the drinks and they have a minimum $10 charge until you can close your tab. We stayed, played 2 games and she didn't talk to me the whole night. After dropping her off, I told her I would text her I'm the morning (Easter plans with the kids were already set) and she didn't even respond.

I probably shouldn't have brought it up but it is still a pretty fresh wound that she has refused to acknowledge since it happened. AITA?