do you trust your spouse while your on the road?

Yeah...well don't let her tempt you with the powers of that "golden triangle" she was born with. Just make a clean break.

 

Get yourself checked, just in case.

 

You need to decide what it is that you want. You not liking your GF being a huge flirt has nothing to do with you trusting her while you're on the road.

Personally, I'm not concerned with what or who or what my wife does when I'm not with her. If she has wants or needs that I can't provide for, then she's free to get what she wants elsewhere. I want her to be happy, just as long as she can keep me happy as well.

 

Don't. Just because they look content when you see them, doesn't mean there isn't a proverbial storm brewing in their relationship. Just like with any other couple you see.
Reminds me of the Army, when you'd have these 18 year-old kids from middle of ####### nowhere, they'd go for block leave one Summer, then suddenly come back married to some girl you never heard them mention even once before. And when they deployed, you'd see that same girl in the clubs on post... the ones on Drum were the most notorious.. Spinners was colloquially referred to as "spouses".
Take your time, find the right one. If you have a dry spell for a while until this happens, cope. You'll find it better to be single and content than to bounce from relationship to relationship and constantly get burned.
Don't expect to have much of a dating life driving a truck OTR. Worst comes to worst, I suppose you always respond to the "commercial company" you'll hear on the CB... just make sure they don't give you the AIDS. Or drop their crack rock in your truck.

 

It takes the right couple to team, if done right there is little time together. Even as a rider it takes the right couple, trucks are more roomy than my little 359 flat top. They are still pretty small for two people and their kool-aid.

 

tiny it is! i do have to admit tho. the few months spent riding with him was one of the highlights in my little world! shocked at how well we did 24/7

 

Good idea living in the truck. Thousands of truckers are doing just that right now. You will be able to save some money and see the USA; maybe find the next town you want to live in. Every day you're away from her, you will feel more relaxed as the weight and stress is lifted off you.