He doesn't know. He doesn't get it. As stupid and simple as that sounds its the truth.
He doesn't know what marriage means.
The kicker and part you might not like is you dont know either. You have a set ideal for marriage, as does he, they arent the same though. Enters counciling. You two need to get on the same page, no scratch that, start reading the same book.
I used to drink and get stoned with my roomates while my wife slept alone in the room, while she would cry herself to sleep. Should would wait up hours for me to get into bed just so she knew I did (cause I slept on the couch often). It was little things that were killing her spirit that I had no clue about. Some people might come one here and say the most absured ideas possibly mention the "D" word, this is not an option at all in the current status of the situation, if ever.
I am telling you right now this is a problem that is a two way street. He is not in the wrong anymore then you are he isnt wrong or right but simply ignorant to the pain he causes, this is a team effort to resolve this.
First, tell him what you feel, withholding as much emotion as possible, you get worked up so will he. This wont do much good, im sad to say, it will register and perhaps get better for a short period of time, when it ends it will hurt that much more.
A child in the mix, questioning reasons for the marriage, and if he cares, these are all early warning signs of larger problems.
Two things not to do, DONT EVER say to your hubby, "You dont care" it become like a tick, when he hears it enough he may just start to believe it, thats big trouble. And stear far away from close interactions with other males. Lonliness will breed lust and attention, and when a person comes along and gives it, you will surely take it. You may so no way, but to feel needed and wanted, useful and cared for, who is giving it can become a blurred line.
Warrior Poet