Have you guys ever sat down and talked about how to setup the household duties for after he comes home? When my husband comes home he typically rests for awhile but after I cook dinner and we eat he helps put the food away and wash the dishes. Everyone clears the table including my 3 and 4 year old that way it is family time . . . at night we take turns bathing the kids and we read the story and put them to bed together. On weekends we split the chores and try to do less because we want it to be family time. After he gets home and the kids are in bed it is no longer chore time unless he wants to help me fold laundry (so we can talk), but typically we sit and talk, cuddle, watch a movie together in silence (just to know we are together); but at the same time we try to give eachother at least 30 mins alone to just have me time. In the evenings it is VITAL that you have nonchore together time and nonchore me time so that you both can feel restored. Also, take a shower before bed, caress his head or vice versa or massage eachothers feet while watching a show, something simple but intimate where the "mood" might be re-established, and when is the last time you both went out together on a date. . . even just a late night netflix movie date at home so you both can have quality you time. Just help him realize that during the day you put in your 8-12 hours and when he comes home you need your rest, his help, eachother, and alone time and intimacy is vital so just try to make a sexual effort and you will probably get the "mood" while trying. Good luck and we will pray for you!
My husband and I got married young too: 17 and 19 and have been married for 8 1/2 years. We have had our moments but working through it and making a fighting effort is worth it for your family and eachother. We have 3 children: 4, 3, 6 mos and my husband is military and deployed 4-6 mos every year.