You said your H has no income and only you cover the bills...I see you're wanting to sell the car...are there any other things that you can do with out (such as cable?) .... I am asking this because I'm wondering if there are things you can't cut to lighten the load for your self so you won't need to seek out your H to cover part. Money can be a big stressor....I know.
Since you've called him about the financials and he hasn't answered I'd say to stop contact for now. Hopefully he will return your call in time...
You dont always have to answer his calls or respond to his texts....but do what works best for your sitch. If your H texts you about a basketball game there's nothing wrong with responding and having a friendly conversations...letting him know you were listening when he originally told you about them team and saying something positive. Use interaction time as times to speak his love language or simply be a friend.
Sometimes when I text someone and they wait hours to respond, I am no longer interested in having the conversation anymore ...so balance appropriately according to you sitch with how you want to respond if at all.
me: 30 H:30 tgthr:7 m:4 no kids 5 counseling sessions initiated by H as a LR: Oct 2012 long distance marriage b/c of work since Nov 2012 official BD: July 2013 nothing filed 1/1/14 I dropped the rope