What I get from my spouse:
Lots of emotional support, and also his perspective on hard situations. Even when that perspective is different from my own, it helps me better understand and respond to whatever is hard for me.
His insight and advice are always helpful.
His confidence. Our private life stays private.
His love and companionship. Last Saturday we had a date together and it was so lovely just to chat about silly stuff that we rarely have time to talk about. He is good company.
We have intimacy, but I'm not discussing it here. Suffice it to say, we're still very connected to each other.
We have tolerance for each others need to be alone for a bit. He and I both max out on being asked to do things/pay attention to/for others, and we allow each other to have those breaks when they come up.
We have some fun things we enjoy in common, esp. games (think cribbage, for instance). We enjoy doing things as a family with our son.
We have awareness that relationships are long, complicated things. We have a very strong commitment to each other and our family and understand that even though couples fall in and out of love with each other, all depending on situations, times in life, etc. that the grass is NEVER greener anywhere else. We both know how to be intentional in honoring our commitment to the family we've created.
I know what you mean about 'roommates'.... we've gone through those phases, and you know what's helped me? It's just to ask "Hey, let's get a sitter once a week for a while so we can reconnect." Get out of the house. Go for favorite walks or hikes together. Go have dinner without the kids interrupting-- heck, it's summer, so you can pack a picnic basket and grab a blanket and it's a cheap date. I could care less about baseball, but I ask my husband how his team is doing because I love him and he loves his team. Dream out loud-- talk about vacations you would love to go on and then, really, make plans for the humble vacation you can afford as a family, even if it's camping at a state park nearby-- just get out of the house for a couple of days together as a family.
I think relationships are a 'you get what you give'. If you are putting off a "I can do it without you" vibe, people tend to withdraw. They don't want to be where they aren't wanted. I do believe people can have a full and satisfying marriage if they are both willing to make the little efforts, be appreciative of the everyday contributions, and say 'thank you for..." to each other a LOT. It takes two to tango, so if you aren't dancing-- he's likely not going to want to dance alone. Make a list of things you appreciate about him, even the 'boring stuff' like taking out the trash, and start there.