My husband is a truck driver and wants me to be a team driver with him. It's a big career choice!?

I love to travel and drive and see different cities, but I"m afraid I"ll gain allot of weight like he did, and he smokes like a chimney which makes me feel sick being stuck in a cab with him. I just got back from being out there for a few weeks and it was great, except the smoking, I smell like an ashtray, and also the way he talks on the CB emberes me, I can take a dirty joke but he throws the F word out there like theres no other word in the english dictionary, and also he has become a perv, always looking down into other cars to see women . This stuff I can laugh off but how soon before it gets on my nerves? I'm pretty easy going and weve been married for 10 years and I really want to make the money that he does, And I think hes got the experience and can show me the ropes and Im tired of Wal-mart and bad paying jobs! any thoughts or suggestions from other truck drivers?