Use the lessons that you've learned from past relationships to guide you on taking ideas presented here into account.
However, be careful and use the lessons and not assumptions or hyper judgment.
If she is easily persuaded by her friends or if she already had doubts about your infidelity before you became a trucker driver you will start to have problems.
My theory is take out all of the complications and distractions (read as strain) you can for both.
After that year you know what to expect of the trucking lifestyle and can communicate that better to someone you care about.
Plus if you are not happy at that company, you can probably go to a company that treats you better including getting you home.
Happier you, more predictability, easier on the relationship.
But wait, you too have to be understanding to to see it from her point of view.