We have two kids and family about 1-2 hours away as well so I know that finding alone time with each other is very hard.
Do you have any Mommy friends where you could swap babysitting? You babysit her kids for one Saturday afternoon and then she babysits yours the next Saturday afternoon? My good friend and I want to do this once her youngest is old enough (her baby is just 6 weeks old so we will have to wait on this another few months) just so we can have a little couple time once a month or so.
You could also ask your closest relative if they wouldn't mind coming down once a month and spend the night so you and DH could do dinner and a movie one night. My parents or my sister do this once every other month or so.
We are also Christians and one day hope to be able to attend a marriage retreat :). Our church also offers a family retreat and hopefully next year we can do that as well.
And since you have just one child right now, if you can afford it, I would do some travelling. It does get harder logistically to travel with another kid, but it is still manageable. My DH and I would drop my son off at my parents in LA then spend the weekend at Disneyland. When he was about a year old he stayed the week at my parents while DH and I celebrated our anniversary at Club Med in Cancun. We just called every night right before his bedtime to talk to him. We also took our son on trips with us to South Dakota, San Francisco, San Diego (before we moved down here), Disney, Santa Barbara, Las Vegas, Maryland, Texas and numerous camping trips. And now with our daughter we have gone to South Dakota and numerous weekends visiting my parents. With two kids it is harder to travel long distances and since we live here in San Diego we spend a lot of our weekends enjoying all that San Diego has to offer. We are planning a camping trip to Carlsbad State Beach for later this year and possibly a trip to San Francisco. And next year we will most likely go to Disneyland and Hawaii with family.
I have also heard that the Disney Cruises are nice for families. And they have babysitting onboard so you and DH and can get some alone time. I also saw that the Club Med in Cancun is now a family resort so they also offer day camps and day care for the kids. If we don't go to Hawaii next year, we will definitely be going to Club Med with the kids.
To spice things up a bit, since your DH spends a lot of time in the LA area, could you surprise him one day and drop off your son with your relatives, arrange for a hotel in the area where your hubby works, and have a night to yourselves?
Another idea would be a "Date Night In" where you and DH take turns planning the night and stay in. Dinner and a video. Lunch and a massage for your DH. Or something different like apple pie ala mode for dinner and a nice soak in the tub together.
Sometimes just to connect and talk, DH and I will split a winecooler and sit out in our spa with all the lights off and just the glow of the moon after the kids go to bed.
We also used to work out together in the garage when we only had 1 kid. It gave us a chance to do something together, get a good work out, make fun of each other, and talk.
Good Luck. Use your imagination and I am sure you and DH will think of fun things to do together and as a family.