@bebe-, that's what I'm trying to avoid so we don't wake up one day feeling like strangers in our own home but he's not willing to meet me half way. I must say though he does help with the kids when he's home. He just shuts down when I bring that conversation up.

Thanks @janeljade1985, and @bebe-.
@bebe-, we don't have any alone time or intimacy anymore. By the time I get back from putting the kids to bed he's asleep. Anytime I say anything he says he's tired from work and I don't understand cos I'm home. I get tired too but at least I'm willing to make an effort.

I would guess it means to give him some space. Hounding him about what he means and what he's thinking is probably the opposite of what he wants. Sometimes people just need to be left alone