U poor thing! It just sounds like an honest mistake, the host offered and you tough baby would behave... It didn't go to plan and it was best that you left and the host should be appreciative that you 1. Made the effort to show up 2. made the effort with a kid! 3. That you left when it got out of hands 4. That you texted and apologized!
And shame on all those who made you feel bad with their comments! 100% they wouldn't say anything if your husband was with you! I know mine would just tell them to get stuffed!