Doesn't Care If She Wets Herself :(

I posted awhile ago in here that I was having problems PT my 3 year old (she is speech delayed so communication is difficult). She does awesome if we take her ever 90 minutes to 2 hours and we haven't had a #2 diaper since January. However, she will never initiate that she needs to pee. This weekend I decided to try and leave her in regular panties and watch for any cues. I didn't see any signs that she needed to go, instead she came and got me to help her play a game and I noticed she was wet. She  didn't seem to care at all, I took her to the bathroom and told her that we go in the bathroom and I put her in a pull-up after that. This is the fourth time since January (when we really started training her) that she has wet herself and not cared. I don't want her to run around naked because we just got over her having an issue with constantly touching her butt and I don't want to open that door again, lol.