@gotcheated,
Wait a minute. Back up. Cheating?
All I am seeing is someone flirting on the phone (and keeping their privacy and not letting you snoop). Flirting happens - get over that - because if you go nuts about mere flirting, you are going to wreck this marriage if it's not already gone.
If she really has hooked up with someone - as in, kissed them, had sex or close to it, then feel free to be suspicious. But if the only proof is what's in your noggin, then, sorry, you are overthinking this and are not necessarily justified.
Why does she want to know which bus to take? Maybe she just wants to take the damned bus and not drive. Full stop. Questions are not necessarily her thinking about cheating on you at all.
I don't see her "desperately trying to hook up with" anyone.
Why is she talking to people on Facebook during the day? Did it ever occur to you that maybe she's just bored? Unless she's sending nudes and specifically telling these guys she wants to meet them, she is having a conversation because, like I said, she has no job and doesn't know anyone in a new town and is probably craving someone to talk to. Not screw.
Talk to.
Right now, you have suspicions and no proof, and a lot of mistrust.
You either trust your wife, or you don't. And if you don't (and
you really don't; it's obvious), then why continue in the marriage?