Frustrated about communication

I'm trying to figure out how to communicate with my husband but I don't want to dwell on him.  Whenever I communicate about my feelings about relationship issues, he fires back with bitter and snarky comments.  But if I communicate about an issue (e.g., money) and request a response and I don't say anything about my feelings, he doesn't respond.  Yesterday, he said in an email that he is less likely to respond to my messages if they contain "negative asides."  Unfortunately, it is hard to determine what he considers a "negative aside" to be.  For example, I asked him to get paid this week (he works for his dad and gets paid in cash and doesn't seem to be on a regular payment schedule; he was last paid one month ago).  No response.  Is this no response because my husband thinks money is a negative topic?