I think deep down we still love each other, but there are resentments on both sides and you can't turn the clock back. Get into the habit of talking together about your day. The demands of family life may make this seem difficult, but if you can look forward to a night out, just the two of you, at least once a month, it can make all the difference. Have fun too. Don't take it personally if your partner changes his or her mind about what they want out of life.
People change and develop at a different pace.