My hubby has been on the road regularly for 20 yrs. Most of the time it is 1-2 nights a week, sometimes more.
Daughter (now 15) and I had and still have our routine and he feels like he is messing things up when he comes home because we have our own schedule. He has never ever missed anything she is involved in with her cheerleading, orchestra, honors recognition at school functions.
Our daughter got her first cell phone around 9-10yr old. He made it clear that she could call or text him anytime for any reason. She still texts him regularly when something happens at school, she has news for him or just to say hi.
As for me, we are connected throughout the day because we own the company and we are doing business. together. I manage all travel arrangements, books, scheduling deliveries, etc. We do a LOT of texting, we yahoo im and a lot of emails on a daily basis. We probably do not go more than 1 hour without some sort of communication. Granted....if we were not BOTH working together, it would not be as much.
We do have webcams and we chat online a lot but we don't use it very often. Sometimes we'll do that to spice up the day.
I put little notes in his suitcase (inside shoes, inside the dry cleaner wrap so when he opens his shirt it falls out, etc) that say thank you and how much we appreciate his hard work to provide us with the very nice life we have.
Hang in there.