Well you can't be sure yet. You should go to your cell phone carrier and they might give you all the texts and whatnot. Get a software that can track keystrokes to see what websites he goes to. Also try this watch?v=LyjKbMlaMbM it's a youtube link, you can make this and put it in your husbands car. Now you can verify where he actually is. If he his cheating, you should talk to him and ask him why. Try to make up.
