Lisa, I agree with most of what snodderly is saying.

Why text him at all unless there is an emergency with the kids?

Why respond to his texts (unless it's an emergency)?

Lisa, what are the chances if he returns that he will cheat again?

Me 57/H 58
M36 S 2.5yrs R 12/13

Let me give up the need to know why things happen as they do.
I will never know and constant wondering is constant suffering.
Caroline Myss