No, the inmate is granted the same privacy that you ore on the outside. If you don't trust him, stop paying for stuff

If you are thinking this, then you already know the answer from past experience. It's too much of a generalization to say "most inmates lie to their loved ones", but I've seen inmates be complete dogs to their wives behind their back. Some wives are blindly paying for their commissary, phone, and email. You know your husband better than anyone... if you are suspecting something, you know the deal already. If you want to keep paying but limit the calls

Not through any channel other than your inmate's truthfulness... but if you are asking you probably know the answer

  No me rendiría tan rápido. Pruebe con otra carta (tal vez a través de nuestro sitio) y vea qué sucede. Los reclusos entienden sus sentimientos fácilmente, es posible que deba ser más persistente de lo habitual

It does happen from time to time, more than you'd think. You will see articles in the news where they expose female guards having sex with inmates. These guards quickly become inmates themselves in the end.

only if they want to

let me ask my fiance for permission ;)

halfway houses are the only place that it could happen. in prison or jail there is no way for them to hook up unless you pay the guards to arrange it for you.

yes and yes :)... but seriously, there are not many facilities that allow conjugal visits anymore. phone sex sounds great, but it's frustrating because you don't have much privacy at the phone bank... try a sexy letter and selfies  

It's actually easier when you know someone is waiting for you when you get out