Start trying to reconnect by doing a monthly date night. You take it in turns to do something and arrange a babysitter.
Try and choose things that can give the opportunity for conversation afterwards.
Make a concious effort to be pleasant to him and show affection without expecting anything in return.
Think back to the things you saw in him when you first met and appreciate his good points.
As much as we women like compliments men do as well, so comment on how good he looks when he's dressed up or how great the aftershave smells and snow love by kissing and hugging.
The compliments need to come naturally otherwise it looks fake if this is something you never do.
Most people will return affection shown to them, but it takes one person to make the first move.
This isn't about throwing yourself at him and pandering to his every need, but treating him like a man you want to spend the rest of your life with.
With the date nights you can sit together and think of stuff you'd both like to do, write the list and cut them out then put in a box or something, then one person pulls out an activity and has to organise it.
Then also as a family with the kids try and have a regular outing. This kind of seals you all together as a family unit which neither of you would want torn apart.
When you've lost the closeness it's hard to get back on track.