Who is responsible for debt in a divorce?

The division of property and of debt is up to the Court, unless the parties reach rational agreement. You would benefit from retaining a skilled divorce lawyer to advise and represent you.

Not enough specifics to respond. Talk to a local attorney. Generally debt may be assigned by the Judge.

Texas is a community property state. This means that the income that either of you makes from any source belongs to you both jointly. Unfortunately, this also means that creditors can seek payment from either one of you for debts. It may be a good idea to talk to a divorce lawyer about a post-marital agreement, dividing your assets and debts to protect you from your husband's financial troubles. A post marital agreement is a document that you and your husband can execute that essentially removes the presumption of community property and isolates certain assets and liabilities as separate property.

Unless he agrees to take the majority of it or you can prove it was for non-marital purposes, you will be responsible for some of the debt.

You may be responsible for half the debt or the entire amount if your name is also on the accounts.

It depends on the details, generally debts and tax obligations incurred during the marriage are presumed to be joint. The presumption can be rebutted. If not agreed to in a settlement the issue will have to be decided by the judge.