I have to say that in my opinion/experience, a lot of the cautiousness from texting orbiters is a little exagerated.
Hear me out here, I just got out of a 6 long year relationship where we were at once engaged, and ultimately I was betrayed by her with an orbiter from work that she texted. Its the exact scenario thats been talked about here. I had loads of evidence, including her phone bill that had over 700 texts/month between the two. She denied it all, even after being confronted with evidence.
However, throughout our relationship she had guy friends who she had a lot of phone contact with who were purely platonic. One of these was a co-worker of hers from a different job who we'd all do stuff together, watch games at bars, go to vegas, visit each others houses, etc. She would pretty much everyday play the game Wordfeud on her phone with him, as well as her older (like 47 year old) boss. They would have little basketball team rivalrys and joking about it over texts and I was even OK with her going to a game without me.
How do I know there wasn't any funny **** going on? For one he was an overweight asian guy, far from her type. Also, we would all hang out together, as well a with her social circle of co-workers, I was known. It would have most likely gotten around as gossip, eventually to me. Additionally, that kind of dynamic just wasn't between them. I knew this girl for over 6 years, she has never been a master of deception, or a master of anything really. I would have picked up on it.
Compared to the most recent events with this new guy she DID have a full on relationship with, it was a lot different. With that guy, she would refuse to let me meet him, always making the excuses that when she was going out it was a just a "work people thing", which had never been the case before.