1. Since your husband is not ready either to divorce or to live separately, please be straight forward with him and convey your decision of not to be carried further as co-applicant.
2. Also, you can find out a suitable person who can replace you in your place as co-applicant..
3. Regarding divorce, it's better to convince your husband to agree for Mutual Consent Divorce, which saves time and money. By opting for MCD, custody of the children, assets, visitation rights, etc., can be amicably resolved.