Possible cheater signs?

So, I've made a few posts here, and I'm sure you guys are tired of seeing me in this section. But yesterday, she said she thinks we should get a divorce, and I think there may be another person involved. Some cheater signs she has been displaying. -Distant -Mean -Cusses at me a lot -Gets mad when I ask what shes doing / where shes at -Has her marriage setting on facebook set to where ONLY I can see. IE, to anyone else, there is nothing there. -Says she thinks we should get a divorce -Frequent hanging out with this girl from her new serving job -Saw her actively on skype at 3 AM, asked her what she was doing, she got mad, said it was just 'logged on'. Though she answered immediately. She hasn't been on skype since. I checked her emails (she does not know I have access to her emails, and that following day, she made an account on ooVoo (Just like skype) and there is 1 person, a guy. I asked her about the guy, (though I didn't reveal my sources, or knowledge of email / oovoo) because she also recently added him on facebook, and she said he was an old family friend. -She has added 5-6 new guys on facebook, yet hasn't added this girl 'katie' that she frequently hangs out with. -Hangs out with 'katie' atleast 4-5 times a week. -I am deployed. There isn't much I can do, though I return in a couple days. -Ignores me. Gets mad at me, over literally anything. -Went to the club last weekend in Atlanta (We are in Columbus, GA) -Promised not to speak to this guy, multiple times within our 3 year relationship. Broken that promise again, as of recent, once I found out she had a new social media site, and he was on it. She says she deleted that new social media site. These are just some things that came to mind. These look a lot like common signs of infidelity. (Hiding things, not caring about promises. Adding lots of guys. Easily angered / ignores.)

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