Talk about it! Tell him: here are some things that would be helpful when I'm emotional/crying.... and give him ways to help. To appreciate him, see what he would like. Does he like gifts or kind words/encouragement, and try to do more of that for him. It's an effort on both parts, but talk about it and work on it!
There is a group on this app called Sex and Relationships, the moms there are so helpful with this stuff!
Talk to him. Not in your emotional time, but when you're thinking clearly.