I do hope that you and your wife can calm down a bit. This is a terrible situation and I know that your emotions are on edge. And please don't call the mother of your children a whore, even if she is acting like one. No good can come from that. None at all.
Keep praying that she will eventually come home, but you really need to start living as if she isn't. I too hope she keeps her men away from your kids. It just isn't right to have them around your kids. Not while you are still married.
Did you check with the formal separation agreement that someone mentioned works in Texas. If it does, you could stipulate that the kids aren't to be exposed to OP, and especially no overnight visitors while the kids are there. That stipulation seems to pretty common here in the midwest.
I'm a man . . . But I can change . . . If I have to . . . I guess . . .