Has anyone else gone through it, you ask? Yes - thousands of people, since the beginning of history. Yet many have stayed together and worked it out. A good, lasting relationship has to be worked at.
Go out places together occasionally. Do things as a family, or get a baby-sitter and do things as a couple. Or if you don't want to go out, watch a DVD together.
You have to tell him how you feel, or he may never be aware of it. You both have to talk about it. Good luck.