How, and more importantly why, are you reading her texts? You've already verified she's unfaithful. Any reason to subject yourself to this? I think it's probably bleeding over into other parts of your life. I hope you change your focus onto your life, work, kids.
H 34 W 29 BD 3/12/18 Divorce Busted Spring 19
It is not things that bother us, but the stories we tell ourselves about things.