How do I catch my boyfriend Cheating?

[GRL_D]

Hi guys,
I just wanted to know how do I catch my boyfriend cheating? Firstly his interstate at the moment , So I have no access to his cell phone /emails. Im not his friend on facebook . I cant rely on my female intuition, so I just want to be sure , if there are any methods without having to pay for anything eg Private investigator, ..Like trying to hack into his voicevoice mail Kim kardashian did ..

[chops]

Create a fake account on Facebook as a hot girl with a fake picture. Try to be his friend...if he accepts then talk flirty to him, see how he responds to it. Start off slow like just friends then juice it up a little.