I'm going to insist my husband take time off work
Why do you want him to do that?
He works too much and is too busy to spend time with me
If that's truly the case, then I think that's a good idea on your part.  It's important to have a healthy work-life balanace!
Yeah. He's doing really well at work, but I'm still jealous of how much time he spends there instead of with me.
Your husband is someone that you care about, so you shouldn't be jealous of his success.  Remember that his happiness is important to you as well, and try to help him maintain a healthy balance between his work and his relationships, particularly with you.